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Finding the Fourth Proportional to 95,031, 131,138.76 and 52,587

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Solution

The fourth proportional to 95,031, 131,138.76 and 52,587 is: 72,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,031 : 131,138.76 = 52,587 : x
  2. Step 2: Convert to fraction form
    95,031/131,138.76 = 52,587/x
  3. Step 3: Cross multiply
    95,031x = 131,138.76 × 52,587
  4. Step 4: Simplify right side
    95,031x = 6,896,193,972.12
  5. Step 5: Solve for x
    x = 6,896,193,972.12/95,031
  6. Step 6: Final answer
    x = 72,567.84

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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.