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Finding the Fourth Proportional to 157,502.49, 217,371.87 and 89,529.66

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Solution

The fourth proportional to 157,502.49, 217,371.87 and 89,529.66 is: 123,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,502.49 : 217,371.87 = 89,529.66 : x
  2. Step 2: Convert to fraction form
    157,502.49/217,371.87 = 89,529.66/x
  3. Step 3: Cross multiply
    157,502.49x = 217,371.87 × 89,529.66
  4. Step 4: Simplify right side
    157,502.49x = 19,461,229,614.66
  5. Step 5: Solve for x
    x = 19,461,229,614.66/157,502.49
  6. Step 6: Final answer
    x = 123,561.41

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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.