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Finding the Fourth Proportional to 124,572.25, 171,909.66 and 67,983.63

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Solution

The fourth proportional to 124,572.25, 171,909.66 and 67,983.63 is: 93,817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,572.25 : 171,909.66 = 67,983.63 : x
  2. Step 2: Convert to fraction form
    124,572.25/171,909.66 = 67,983.63/x
  3. Step 3: Cross multiply
    124,572.25x = 171,909.66 × 67,983.63
  4. Step 4: Simplify right side
    124,572.25x = 11,687,042,718.87
  5. Step 5: Solve for x
    x = 11,687,042,718.87/124,572.25
  6. Step 6: Final answer
    x = 93,817.38

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1.5x scale

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.