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Finding the Fourth Proportional to 113,447.52, 156,548.16 and 63,149.76

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Solution

The fourth proportional to 113,447.52, 156,548.16 and 63,149.76 is: 87,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,447.52 : 156,548.16 = 63,149.76 : x
  2. Step 2: Convert to fraction form
    113,447.52/156,548.16 = 63,149.76/x
  3. Step 3: Cross multiply
    113,447.52x = 156,548.16 × 63,149.76
  4. Step 4: Simplify right side
    113,447.52x = 9,885,978,732.44
  5. Step 5: Solve for x
    x = 9,885,978,732.44/113,447.52
  6. Step 6: Final answer
    x = 87,141.43

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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.