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Finding the Fourth Proportional to 159,125.50, 219,593.19 and 87,510.16

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Solution

The fourth proportional to 159,125.50, 219,593.19 and 87,510.16 is: 120,764.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,125.50 : 219,593.19 = 87,510.16 : x
  2. Step 2: Convert to fraction form
    159,125.50/219,593.19 = 87,510.16/x
  3. Step 3: Cross multiply
    159,125.50x = 219,593.19 × 87,510.16
  4. Step 4: Simplify right side
    159,125.50x = 19,216,635,191.81
  5. Step 5: Solve for x
    x = 19,216,635,191.81/159,125.50
  6. Step 6: Final answer
    x = 120,764.02

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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.