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Finding the Fourth Proportional to 159,093.92, 219,549.76 and 87,475.20

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Solution

The fourth proportional to 159,093.92, 219,549.76 and 87,475.20 is: 120,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,093.92 : 219,549.76 = 87,475.20 : x
  2. Step 2: Convert to fraction form
    159,093.92/219,549.76 = 87,475.20/x
  3. Step 3: Cross multiply
    159,093.92x = 219,549.76 × 87,475.20
  4. Step 4: Simplify right side
    159,093.92x = 19,205,159,165.95
  5. Step 5: Solve for x
    x = 19,205,159,165.95/159,093.92
  6. Step 6: Final answer
    x = 120,715.86

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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.