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Finding the Fourth Proportional to 193,151.92, 289,656.90 and 66,759.76

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Solution

The fourth proportional to 193,151.92, 289,656.90 and 66,759.76 is: 100,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,151.92 : 289,656.90 = 66,759.76 : x
  2. Step 2: Convert to fraction form
    193,151.92/289,656.90 = 66,759.76/x
  3. Step 3: Cross multiply
    193,151.92x = 289,656.90 × 66,759.76
  4. Step 4: Simplify right side
    193,151.92x = 19,337,425,126.34
  5. Step 5: Solve for x
    x = 19,337,425,126.34/193,151.92
  6. Step 6: Final answer
    x = 100,115.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.