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Finding the Fourth Proportional to 206,700.40, 310,050.60 and 88,383.70

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Solution

The fourth proportional to 206,700.40, 310,050.60 and 88,383.70 is: 132,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,700.40 : 310,050.60 = 88,383.70 : x
  2. Step 2: Convert to fraction form
    206,700.40/310,050.60 = 88,383.70/x
  3. Step 3: Cross multiply
    206,700.40x = 310,050.60 × 88,383.70
  4. Step 4: Simplify right side
    206,700.40x = 27,403,419,215.22
  5. Step 5: Solve for x
    x = 27,403,419,215.22/206,700.40
  6. Step 6: Final answer
    x = 132,575.55

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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.