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Finding the Fourth Proportional to 245,098.80, 367,648.20 and 156,087.90

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Solution

The fourth proportional to 245,098.80, 367,648.20 and 156,087.90 is: 234,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,098.80 : 367,648.20 = 156,087.90 : x
  2. Step 2: Convert to fraction form
    245,098.80/367,648.20 = 156,087.90/x
  3. Step 3: Cross multiply
    245,098.80x = 367,648.20 × 156,087.90
  4. Step 4: Simplify right side
    245,098.80x = 57,385,435,476.78
  5. Step 5: Solve for x
    x = 57,385,435,476.78/245,098.80
  6. Step 6: Final answer
    x = 234,131.85

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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.