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Finding the Fourth Proportional to 116,398.86, 174,819.70 and 72,333.52

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Solution

The fourth proportional to 116,398.86, 174,819.70 and 72,333.52 is: 108,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,398.86 : 174,819.70 = 72,333.52 : x
  2. Step 2: Convert to fraction form
    116,398.86/174,819.70 = 72,333.52/x
  3. Step 3: Cross multiply
    116,398.86x = 174,819.70 × 72,333.52
  4. Step 4: Simplify right side
    116,398.86x = 12,645,324,266.34
  5. Step 5: Solve for x
    x = 12,645,324,266.34/116,398.86
  6. Step 6: Final answer
    x = 108,637.87

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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.