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Finding the Fourth Proportional to 83,554.32, 125,244 and 61,334.40

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Solution

The fourth proportional to 83,554.32, 125,244 and 61,334.40 is: 91,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,554.32 : 125,244 = 61,334.40 : x
  2. Step 2: Convert to fraction form
    83,554.32/125,244 = 61,334.40/x
  3. Step 3: Cross multiply
    83,554.32x = 125,244 × 61,334.40
  4. Step 4: Simplify right side
    83,554.32x = 7,681,765,593.60
  5. Step 5: Solve for x
    x = 7,681,765,593.60/83,554.32
  6. Step 6: Final answer
    x = 91,937.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.