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Finding the Fourth Proportional to 157,580.64, 217,479.96 and 89,618.76

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Solution

The fourth proportional to 157,580.64, 217,479.96 and 89,618.76 is: 123,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,580.64 : 217,479.96 = 89,618.76 : x
  2. Step 2: Convert to fraction form
    157,580.64/217,479.96 = 89,618.76/x
  3. Step 3: Cross multiply
    157,580.64x = 217,479.96 × 89,618.76
  4. Step 4: Simplify right side
    157,580.64x = 19,490,284,340.05
  5. Step 5: Solve for x
    x = 19,490,284,340.05/157,580.64
  6. Step 6: Final answer
    x = 123,684.51

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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.