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Finding the Fourth Proportional to 359,389.80, 539,214.30 and 149,092.20

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Solution

The fourth proportional to 359,389.80, 539,214.30 and 149,092.20 is: 223,692.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,389.80 : 539,214.30 = 149,092.20 : x
  2. Step 2: Convert to fraction form
    359,389.80/539,214.30 = 149,092.20/x
  3. Step 3: Cross multiply
    359,389.80x = 539,214.30 × 149,092.20
  4. Step 4: Simplify right side
    359,389.80x = 80,392,646,258.46
  5. Step 5: Solve for x
    x = 80,392,646,258.46/359,389.80
  6. Step 6: Final answer
    x = 223,692.06

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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.