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Finding the Fourth Proportional to 60,940.06, 91,373.16 and 39,854.64

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Solution

The fourth proportional to 60,940.06, 91,373.16 and 39,854.64 is: 59,757.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,940.06 : 91,373.16 = 39,854.64 : x
  2. Step 2: Convert to fraction form
    60,940.06/91,373.16 = 39,854.64/x
  3. Step 3: Cross multiply
    60,940.06x = 91,373.16 × 39,854.64
  4. Step 4: Simplify right side
    60,940.06x = 3,641,644,397.46
  5. Step 5: Solve for x
    x = 3,641,644,397.46/60,940.06
  6. Step 6: Final answer
    x = 59,757.81

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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.