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Finding the Fourth Proportional to 157,616.86, 217,510.20 and 89,633.86

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Solution

The fourth proportional to 157,616.86, 217,510.20 and 89,633.86 is: 123,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,616.86 : 217,510.20 = 89,633.86 : x
  2. Step 2: Convert to fraction form
    157,616.86/217,510.20 = 89,633.86/x
  3. Step 3: Cross multiply
    157,616.86x = 217,510.20 × 89,633.86
  4. Step 4: Simplify right side
    157,616.86x = 19,496,278,815.37
  5. Step 5: Solve for x
    x = 19,496,278,815.37/157,616.86
  6. Step 6: Final answer
    x = 123,694.12

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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.