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Finding the Fourth Proportional to 86,867.92, 119,877.96 and 47,123.92

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Solution

The fourth proportional to 86,867.92, 119,877.96 and 47,123.92 is: 65,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,867.92 : 119,877.96 = 47,123.92 : x
  2. Step 2: Convert to fraction form
    86,867.92/119,877.96 = 47,123.92/x
  3. Step 3: Cross multiply
    86,867.92x = 119,877.96 × 47,123.92
  4. Step 4: Simplify right side
    86,867.92x = 5,649,119,396.80
  5. Step 5: Solve for x
    x = 5,649,119,396.80/86,867.92
  6. Step 6: Final answer
    x = 65,031.13

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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.