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Finding the Fourth Proportional to 359,911.20, 540,193.97 and 191,572.34

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Solution

The fourth proportional to 359,911.20, 540,193.97 and 191,572.34 is: 287,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,911.20 : 540,193.97 = 191,572.34 : x
  2. Step 2: Convert to fraction form
    359,911.20/540,193.97 = 191,572.34/x
  3. Step 3: Cross multiply
    359,911.20x = 540,193.97 × 191,572.34
  4. Step 4: Simplify right side
    359,911.20x = 103,486,222,886.79
  5. Step 5: Solve for x
    x = 103,486,222,886.79/359,911.20
  6. Step 6: Final answer
    x = 287,532.65

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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.