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Finding the Fourth Proportional to 351,272.80, 526,909.20 and 88,616.80

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Solution

The fourth proportional to 351,272.80, 526,909.20 and 88,616.80 is: 132,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,272.80 : 526,909.20 = 88,616.80 : x
  2. Step 2: Convert to fraction form
    351,272.80/526,909.20 = 88,616.80/x
  3. Step 3: Cross multiply
    351,272.80x = 526,909.20 × 88,616.80
  4. Step 4: Simplify right side
    351,272.80x = 46,693,007,194.56
  5. Step 5: Solve for x
    x = 46,693,007,194.56/351,272.80
  6. Step 6: Final answer
    x = 132,925.20

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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.