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Finding the Fourth Proportional to 115,472.64, 173,286.72 and 52,309.92

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Solution

The fourth proportional to 115,472.64, 173,286.72 and 52,309.92 is: 78,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,472.64 : 173,286.72 = 52,309.92 : x
  2. Step 2: Convert to fraction form
    115,472.64/173,286.72 = 52,309.92/x
  3. Step 3: Cross multiply
    115,472.64x = 173,286.72 × 52,309.92
  4. Step 4: Simplify right side
    115,472.64x = 9,064,614,460.26
  5. Step 5: Solve for x
    x = 9,064,614,460.26/115,472.64
  6. Step 6: Final answer
    x = 78,500.11

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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.