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Finding the Fourth Proportional to 116,397.88, 174,818.28 and 72,332.56

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Solution

The fourth proportional to 116,397.88, 174,818.28 and 72,332.56 is: 108,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,397.88 : 174,818.28 = 72,332.56 : x
  2. Step 2: Convert to fraction form
    116,397.88/174,818.28 = 72,332.56/x
  3. Step 3: Cross multiply
    116,397.88x = 174,818.28 × 72,332.56
  4. Step 4: Simplify right side
    116,397.88x = 12,645,053,727.20
  5. Step 5: Solve for x
    x = 12,645,053,727.20/116,397.88
  6. Step 6: Final answer
    x = 108,636.46

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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.