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Finding the Fourth Proportional to 115,096.92, 158,876.92 and 85,123.46

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Solution

The fourth proportional to 115,096.92, 158,876.92 and 85,123.46 is: 117,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,096.92 : 158,876.92 = 85,123.46 : x
  2. Step 2: Convert to fraction form
    115,096.92/158,876.92 = 85,123.46/x
  3. Step 3: Cross multiply
    115,096.92x = 158,876.92 × 85,123.46
  4. Step 4: Simplify right side
    115,096.92x = 13,524,153,144.54
  5. Step 5: Solve for x
    x = 13,524,153,144.54/115,096.92
  6. Step 6: Final answer
    x = 117,502.30

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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.