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Finding the Fourth Proportional to 113,531.06, 156,672.87 and 63,230.06

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Solution

The fourth proportional to 113,531.06, 156,672.87 and 63,230.06 is: 87,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,531.06 : 156,672.87 = 63,230.06 : x
  2. Step 2: Convert to fraction form
    113,531.06/156,672.87 = 63,230.06/x
  3. Step 3: Cross multiply
    113,531.06x = 156,672.87 × 63,230.06
  4. Step 4: Simplify right side
    113,531.06x = 9,906,435,125.04
  5. Step 5: Solve for x
    x = 9,906,435,125.04/113,531.06
  6. Step 6: Final answer
    x = 87,257.49

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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.