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Finding the Fourth Proportional to 111,730.56, 167,613.12 and 52,572.48

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Solution

The fourth proportional to 111,730.56, 167,613.12 and 52,572.48 is: 78,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,730.56 : 167,613.12 = 52,572.48 : x
  2. Step 2: Convert to fraction form
    111,730.56/167,613.12 = 52,572.48/x
  3. Step 3: Cross multiply
    111,730.56x = 167,613.12 × 52,572.48
  4. Step 4: Simplify right side
    111,730.56x = 8,811,837,398.94
  5. Step 5: Solve for x
    x = 8,811,837,398.94/111,730.56
  6. Step 6: Final answer
    x = 78,866.85

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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.