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Finding the Fourth Proportional to 111,508.59, 153,882.99 and 60,521.76

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Solution

The fourth proportional to 111,508.59, 153,882.99 and 60,521.76 is: 83,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,508.59 : 153,882.99 = 60,521.76 : x
  2. Step 2: Convert to fraction form
    111,508.59/153,882.99 = 60,521.76/x
  3. Step 3: Cross multiply
    111,508.59x = 153,882.99 × 60,521.76
  4. Step 4: Simplify right side
    111,508.59x = 9,313,269,388.86
  5. Step 5: Solve for x
    x = 9,313,269,388.86/111,508.59
  6. Step 6: Final answer
    x = 83,520.65

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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.