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Finding the Fourth Proportional to 118,863.68, 178,257.82 and 38,883.16

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Solution

The fourth proportional to 118,863.68, 178,257.82 and 38,883.16 is: 58,312.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,863.68 : 178,257.82 = 38,883.16 : x
  2. Step 2: Convert to fraction form
    118,863.68/178,257.82 = 38,883.16/x
  3. Step 3: Cross multiply
    118,863.68x = 178,257.82 × 38,883.16
  4. Step 4: Simplify right side
    118,863.68x = 6,931,227,336.31
  5. Step 5: Solve for x
    x = 6,931,227,336.31/118,863.68
  6. Step 6: Final answer
    x = 58,312.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.