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Finding the Fourth Proportional to 91,566.97, 137,502.86 and 61,772.97

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Solution

The fourth proportional to 91,566.97, 137,502.86 and 61,772.97 is: 92,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,566.97 : 137,502.86 = 61,772.97 : x
  2. Step 2: Convert to fraction form
    91,566.97/137,502.86 = 61,772.97/x
  3. Step 3: Cross multiply
    91,566.97x = 137,502.86 × 61,772.97
  4. Step 4: Simplify right side
    91,566.97x = 8,493,960,045.69
  5. Step 5: Solve for x
    x = 8,493,960,045.69/91,566.97
  6. Step 6: Final answer
    x = 92,762.27

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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.