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Finding the Fourth Proportional to 170,748.60, 235,523.10 and 103,680.60

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Solution

The fourth proportional to 170,748.60, 235,523.10 and 103,680.60 is: 143,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,748.60 : 235,523.10 = 103,680.60 : x
  2. Step 2: Convert to fraction form
    170,748.60/235,523.10 = 103,680.60/x
  3. Step 3: Cross multiply
    170,748.60x = 235,523.10 × 103,680.60
  4. Step 4: Simplify right side
    170,748.60x = 24,419,176,321.86
  5. Step 5: Solve for x
    x = 24,419,176,321.86/170,748.60
  6. Step 6: Final answer
    x = 143,012.45

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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.