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Finding the Fourth Proportional to 359,821.80, 539,734.55 and 149,459.94

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Solution

The fourth proportional to 359,821.80, 539,734.55 and 149,459.94 is: 224,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,821.80 : 539,734.55 = 149,459.94 : x
  2. Step 2: Convert to fraction form
    359,821.80/539,734.55 = 149,459.94/x
  3. Step 3: Cross multiply
    359,821.80x = 539,734.55 × 149,459.94
  4. Step 4: Simplify right side
    359,821.80x = 80,668,690,012.95
  5. Step 5: Solve for x
    x = 80,668,690,012.95/359,821.80
  6. Step 6: Final answer
    x = 224,190.67

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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.