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Finding the Fourth Proportional to 124,544.92, 171,874.14 and 67,956.76

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Solution

The fourth proportional to 124,544.92, 171,874.14 and 67,956.76 is: 93,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,544.92 : 171,874.14 = 67,956.76 : x
  2. Step 2: Convert to fraction form
    124,544.92/171,874.14 = 67,956.76/x
  3. Step 3: Cross multiply
    124,544.92x = 171,874.14 × 67,956.76
  4. Step 4: Simplify right side
    124,544.92x = 11,680,009,682.19
  5. Step 5: Solve for x
    x = 11,680,009,682.19/124,544.92
  6. Step 6: Final answer
    x = 93,781.50

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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.