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Finding the Fourth Proportional to 116,398.97, 174,819.87 and 72,333.66

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Solution

The fourth proportional to 116,398.97, 174,819.87 and 72,333.66 is: 108,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,398.97 : 174,819.87 = 72,333.66 : x
  2. Step 2: Convert to fraction form
    116,398.97/174,819.87 = 72,333.66/x
  3. Step 3: Cross multiply
    116,398.97x = 174,819.87 × 72,333.66
  4. Step 4: Simplify right side
    116,398.97x = 12,645,360,710.04
  5. Step 5: Solve for x
    x = 12,645,360,710.04/116,398.97
  6. Step 6: Final answer
    x = 108,638.08

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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.