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Finding the Fourth Proportional to 157,504.11, 217,347.78 and 89,512.11

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Solution

The fourth proportional to 157,504.11, 217,347.78 and 89,512.11 is: 123,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,504.11 : 217,347.78 = 89,512.11 : x
  2. Step 2: Convert to fraction form
    157,504.11/217,347.78 = 89,512.11/x
  3. Step 3: Cross multiply
    157,504.11x = 217,347.78 × 89,512.11
  4. Step 4: Simplify right side
    157,504.11x = 19,455,258,391.62
  5. Step 5: Solve for x
    x = 19,455,258,391.62/157,504.11
  6. Step 6: Final answer
    x = 123,522.23

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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.