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Finding the Fourth Proportional to 119,937.43, 165,516.24 and 66,225.86

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Solution

The fourth proportional to 119,937.43, 165,516.24 and 66,225.86 is: 91,393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,937.43 : 165,516.24 = 66,225.86 : x
  2. Step 2: Convert to fraction form
    119,937.43/165,516.24 = 66,225.86/x
  3. Step 3: Cross multiply
    119,937.43x = 165,516.24 × 66,225.86
  4. Step 4: Simplify right side
    119,937.43x = 10,961,455,337.97
  5. Step 5: Solve for x
    x = 10,961,455,337.97/119,937.43
  6. Step 6: Final answer
    x = 91,393.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.