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Finding the Fourth Proportional to 124,565.88, 171,901.26 and 74,263.80

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Solution

The fourth proportional to 124,565.88, 171,901.26 and 74,263.80 is: 102,484.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,565.88 : 171,901.26 = 74,263.80 : x
  2. Step 2: Convert to fraction form
    124,565.88/171,901.26 = 74,263.80/x
  3. Step 3: Cross multiply
    124,565.88x = 171,901.26 × 74,263.80
  4. Step 4: Simplify right side
    124,565.88x = 12,766,040,792.39
  5. Step 5: Solve for x
    x = 12,766,040,792.39/124,565.88
  6. Step 6: Final answer
    x = 102,484.25

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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.