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Finding the Fourth Proportional to 157,597.76, 217,479.92 and 89,622.12

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Solution

The fourth proportional to 157,597.76, 217,479.92 and 89,622.12 is: 123,675.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,597.76 : 217,479.92 = 89,622.12 : x
  2. Step 2: Convert to fraction form
    157,597.76/217,479.92 = 89,622.12/x
  3. Step 3: Cross multiply
    157,597.76x = 217,479.92 × 89,622.12
  4. Step 4: Simplify right side
    157,597.76x = 19,491,011,487.83
  5. Step 5: Solve for x
    x = 19,491,011,487.83/157,597.76
  6. Step 6: Final answer
    x = 123,675.69

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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.