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Finding the Fourth Proportional to 157,574.44, 217,454.12 and 85,954.78

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Solution

The fourth proportional to 157,574.44, 217,454.12 and 85,954.78 is: 118,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,574.44 : 217,454.12 = 85,954.78 : x
  2. Step 2: Convert to fraction form
    157,574.44/217,454.12 = 85,954.78/x
  3. Step 3: Cross multiply
    157,574.44x = 217,454.12 × 85,954.78
  4. Step 4: Simplify right side
    157,574.44x = 18,691,221,044.69
  5. Step 5: Solve for x
    x = 18,691,221,044.69/157,574.44
  6. Step 6: Final answer
    x = 118,618.36

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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.