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Finding the Fourth Proportional to 111,235.56, 153,507.52 and 63,487.92

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Solution

The fourth proportional to 111,235.56, 153,507.52 and 63,487.92 is: 87,614.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,235.56 : 153,507.52 = 63,487.92 : x
  2. Step 2: Convert to fraction form
    111,235.56/153,507.52 = 63,487.92/x
  3. Step 3: Cross multiply
    111,235.56x = 153,507.52 × 63,487.92
  4. Step 4: Simplify right side
    111,235.56x = 9,745,873,149.16
  5. Step 5: Solve for x
    x = 9,745,873,149.16/111,235.56
  6. Step 6: Final answer
    x = 87,614.73

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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.