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Finding the Fourth Proportional to 78,552.54, 117,736.49 and 41,130.23

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Solution

The fourth proportional to 78,552.54, 117,736.49 and 41,130.23 is: 61,647.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,552.54 : 117,736.49 = 41,130.23 : x
  2. Step 2: Convert to fraction form
    78,552.54/117,736.49 = 41,130.23/x
  3. Step 3: Cross multiply
    78,552.54x = 117,736.49 × 41,130.23
  4. Step 4: Simplify right side
    78,552.54x = 4,842,528,427.24
  5. Step 5: Solve for x
    x = 4,842,528,427.24/78,552.54
  6. Step 6: Final answer
    x = 61,647.00

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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.