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Finding the Fourth Proportional to 113,060.32, 156,023.84 and 62,769.12

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Solution

The fourth proportional to 113,060.32, 156,023.84 and 62,769.12 is: 86,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,060.32 : 156,023.84 = 62,769.12 : x
  2. Step 2: Convert to fraction form
    113,060.32/156,023.84 = 62,769.12/x
  3. Step 3: Cross multiply
    113,060.32x = 156,023.84 × 62,769.12
  4. Step 4: Simplify right side
    113,060.32x = 9,793,479,135.82
  5. Step 5: Solve for x
    x = 9,793,479,135.82/113,060.32
  6. Step 6: Final answer
    x = 86,621.72

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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.