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Finding the Fourth Proportional to 71,659.32, 107,330.76 and 44,918.16

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Solution

The fourth proportional to 71,659.32, 107,330.76 and 44,918.16 is: 67,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,659.32 : 107,330.76 = 44,918.16 : x
  2. Step 2: Convert to fraction form
    71,659.32/107,330.76 = 44,918.16/x
  3. Step 3: Cross multiply
    71,659.32x = 107,330.76 × 44,918.16
  4. Step 4: Simplify right side
    71,659.32x = 4,821,100,250.60
  5. Step 5: Solve for x
    x = 4,821,100,250.60/71,659.32
  6. Step 6: Final answer
    x = 67,278.06

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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.