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Finding the Fourth Proportional to 68,535,334.01, 102,792,888.88 and 20,000,156.09

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Solution

The fourth proportional to 68,535,334.01, 102,792,888.88 and 20,000,156.09 is: 29,997,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,535,334.01 : 102,792,888.88 = 20,000,156.09 : x
  2. Step 2: Convert to fraction form
    68,535,334.01/102,792,888.88 = 20,000,156.09/x
  3. Step 3: Cross multiply
    68,535,334.01x = 102,792,888.88 × 20,000,156.09
  4. Step 4: Simplify right side
    68,535,334.01x = 2,055,873,822,542,025.25
  5. Step 5: Solve for x
    x = 2,055,873,822,542,025.25/68,535,334.01
  6. Step 6: Final answer
    x = 29,997,283.19

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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.