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Finding the Fourth Proportional to 72,792,116,629.20, 109,188,174,943.80 and 72,792,116,629.20

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Solution

The fourth proportional to 72,792,116,629.20, 109,188,174,943.80 and 72,792,116,629.20 is: 109,188,174,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,792,116,629.20 : 109,188,174,943.80 = 72,792,116,629.20 : x
  2. Step 2: Convert to fraction form
    72,792,116,629.20/109,188,174,943.80 = 72,792,116,629.20/x
  3. Step 3: Cross multiply
    72,792,116,629.20x = 109,188,174,943.80 × 72,792,116,629.20
  4. Step 4: Simplify right side
    72,792,116,629.20x = 7,948,038,365,038,582,431,744
  5. Step 5: Solve for x
    x = 7,948,038,365,038,582,431,744/72,792,116,629.20
  6. Step 6: Final answer
    x = 109,188,174,943.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.