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Finding the Fourth Proportional to 157,493.24, 217,359.11 and 89,520.42

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Solution

The fourth proportional to 157,493.24, 217,359.11 and 89,520.42 is: 123,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,493.24 : 217,359.11 = 89,520.42 : x
  2. Step 2: Convert to fraction form
    157,493.24/217,359.11 = 89,520.42/x
  3. Step 3: Cross multiply
    157,493.24x = 217,359.11 × 89,520.42
  4. Step 4: Simplify right side
    157,493.24x = 19,458,078,818.03
  5. Step 5: Solve for x
    x = 19,458,078,818.03/157,493.24
  6. Step 6: Final answer
    x = 123,548.66

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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.