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Finding the Fourth Proportional to 202,860.70, 304,291.05 and 132,001.90

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Solution

The fourth proportional to 202,860.70, 304,291.05 and 132,001.90 is: 198,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,860.70 : 304,291.05 = 132,001.90 : x
  2. Step 2: Convert to fraction form
    202,860.70/304,291.05 = 132,001.90/x
  3. Step 3: Cross multiply
    202,860.70x = 304,291.05 × 132,001.90
  4. Step 4: Simplify right side
    202,860.70x = 40,166,996,753.00
  5. Step 5: Solve for x
    x = 40,166,996,753.00/202,860.70
  6. Step 6: Final answer
    x = 198,002.85

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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.