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Finding the Fourth Proportional to 367,451.30, 550,962.45 and 142,548.95

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Solution

The fourth proportional to 367,451.30, 550,962.45 and 142,548.95 is: 213,740.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,451.30 : 550,962.45 = 142,548.95 : x
  2. Step 2: Convert to fraction form
    367,451.30/550,962.45 = 142,548.95/x
  3. Step 3: Cross multiply
    367,451.30x = 550,962.45 × 142,548.95
  4. Step 4: Simplify right side
    367,451.30x = 78,539,120,114.33
  5. Step 5: Solve for x
    x = 78,539,120,114.33/367,451.30
  6. Step 6: Final answer
    x = 213,740.21

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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.