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Finding the Fourth Proportional to 124,070.80, 171,209.28 and 67,480.96

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Solution

The fourth proportional to 124,070.80, 171,209.28 and 67,480.96 is: 93,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,070.80 : 171,209.28 = 67,480.96 : x
  2. Step 2: Convert to fraction form
    124,070.80/171,209.28 = 67,480.96/x
  3. Step 3: Cross multiply
    124,070.80x = 171,209.28 × 67,480.96
  4. Step 4: Simplify right side
    124,070.80x = 11,553,366,575.31
  5. Step 5: Solve for x
    x = 11,553,366,575.31/124,070.80
  6. Step 6: Final answer
    x = 93,119.14

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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.