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Finding the Fourth Proportional to 359,581.37, 539,612.85 and 149,219.51

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Solution

The fourth proportional to 359,581.37, 539,612.85 and 149,219.51 is: 223,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,581.37 : 539,612.85 = 149,219.51 : x
  2. Step 2: Convert to fraction form
    359,581.37/539,612.85 = 149,219.51/x
  3. Step 3: Cross multiply
    359,581.37x = 539,612.85 × 149,219.51
  4. Step 4: Simplify right side
    359,581.37x = 80,520,765,066.70
  5. Step 5: Solve for x
    x = 80,520,765,066.70/359,581.37
  6. Step 6: Final answer
    x = 223,929.19

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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.