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Finding the Fourth Proportional to 367,069.05, 550,439.55 and 142,354.80

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Solution

The fourth proportional to 367,069.05, 550,439.55 and 142,354.80 is: 213,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,069.05 : 550,439.55 = 142,354.80 : x
  2. Step 2: Convert to fraction form
    367,069.05/550,439.55 = 142,354.80/x
  3. Step 3: Cross multiply
    367,069.05x = 550,439.55 × 142,354.80
  4. Step 4: Simplify right side
    367,069.05x = 78,357,712,052.34
  5. Step 5: Solve for x
    x = 78,357,712,052.34/367,069.05
  6. Step 6: Final answer
    x = 213,468.59

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1.5x scale

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.