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Finding the Fourth Proportional to 207,326.40, 310,759.20 and 88,977.60

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Solution

The fourth proportional to 207,326.40, 310,759.20 and 88,977.60 is: 133,367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,326.40 : 310,759.20 = 88,977.60 : x
  2. Step 2: Convert to fraction form
    207,326.40/310,759.20 = 88,977.60/x
  3. Step 3: Cross multiply
    207,326.40x = 310,759.20 × 88,977.60
  4. Step 4: Simplify right side
    207,326.40x = 27,650,607,793.92
  5. Step 5: Solve for x
    x = 27,650,607,793.92/207,326.40
  6. Step 6: Final answer
    x = 133,367.52

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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.