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Finding the Fourth Proportional to 156,637.80, 216,061.84 and 92,930.52

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Solution

The fourth proportional to 156,637.80, 216,061.84 and 92,930.52 is: 128,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.80 : 216,061.84 = 92,930.52 : x
  2. Step 2: Convert to fraction form
    156,637.80/216,061.84 = 92,930.52/x
  3. Step 3: Cross multiply
    156,637.80x = 216,061.84 × 92,930.52
  4. Step 4: Simplify right side
    156,637.80x = 20,078,739,143.36
  5. Step 5: Solve for x
    x = 20,078,739,143.36/156,637.80
  6. Step 6: Final answer
    x = 128,185.78

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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.