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Finding the Fourth Proportional to 157,601.85, 217,489.50 and 89,618.82

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Solution

The fourth proportional to 157,601.85, 217,489.50 and 89,618.82 is: 123,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,601.85 : 217,489.50 = 89,618.82 : x
  2. Step 2: Convert to fraction form
    157,601.85/217,489.50 = 89,618.82/x
  3. Step 3: Cross multiply
    157,601.85x = 217,489.50 × 89,618.82
  4. Step 4: Simplify right side
    157,601.85x = 19,491,152,352.39
  5. Step 5: Solve for x
    x = 19,491,152,352.39/157,601.85
  6. Step 6: Final answer
    x = 123,673.37

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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.