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Finding the Fourth Proportional to 243,748.97, 365,627.60 and 66,251.64

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Solution

The fourth proportional to 243,748.97, 365,627.60 and 66,251.64 is: 99,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,748.97 : 365,627.60 = 66,251.64 : x
  2. Step 2: Convert to fraction form
    243,748.97/365,627.60 = 66,251.64/x
  3. Step 3: Cross multiply
    243,748.97x = 365,627.60 × 66,251.64
  4. Step 4: Simplify right side
    243,748.97x = 24,223,428,129.26
  5. Step 5: Solve for x
    x = 24,223,428,129.26/243,748.97
  6. Step 6: Final answer
    x = 99,378.59

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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.