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Finding the Fourth Proportional to 157,601.34, 217,488.81 and 89,618.31

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Solution

The fourth proportional to 157,601.34, 217,488.81 and 89,618.31 is: 123,672.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,601.34 : 217,488.81 = 89,618.31 : x
  2. Step 2: Convert to fraction form
    157,601.34/217,488.81 = 89,618.31/x
  3. Step 3: Cross multiply
    157,601.34x = 217,488.81 × 89,618.31
  4. Step 4: Simplify right side
    157,601.34x = 19,490,979,596.11
  5. Step 5: Solve for x
    x = 19,490,979,596.11/157,601.34
  6. Step 6: Final answer
    x = 123,672.68

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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.