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Finding the Fourth Proportional to 157,906.73, 217,923.71 and 89,926.58

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Solution

The fourth proportional to 157,906.73, 217,923.71 and 89,926.58 is: 124,105.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,906.73 : 217,923.71 = 89,926.58 : x
  2. Step 2: Convert to fraction form
    157,906.73/217,923.71 = 89,926.58/x
  3. Step 3: Cross multiply
    157,906.73x = 217,923.71 × 89,926.58
  4. Step 4: Simplify right side
    157,906.73x = 19,597,132,401.96
  5. Step 5: Solve for x
    x = 19,597,132,401.96/157,906.73
  6. Step 6: Final answer
    x = 124,105.75

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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.