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Finding the Fourth Proportional to 159,214.44, 219,715.92 and 87,592.92

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Solution

The fourth proportional to 159,214.44, 219,715.92 and 87,592.92 is: 120,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,214.44 : 219,715.92 = 87,592.92 : x
  2. Step 2: Convert to fraction form
    159,214.44/219,715.92 = 87,592.92/x
  3. Step 3: Cross multiply
    159,214.44x = 219,715.92 × 87,592.92
  4. Step 4: Simplify right side
    159,214.44x = 19,245,559,086.78
  5. Step 5: Solve for x
    x = 19,245,559,086.78/159,214.44
  6. Step 6: Final answer
    x = 120,878.23

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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.