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Finding the Fourth Proportional to 359,756.28, 539,540.42 and 106,968.70

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Solution

The fourth proportional to 359,756.28, 539,540.42 and 106,968.70 is: 160,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,756.28 : 539,540.42 = 106,968.70 : x
  2. Step 2: Convert to fraction form
    359,756.28/539,540.42 = 106,968.70/x
  3. Step 3: Cross multiply
    359,756.28x = 539,540.42 × 106,968.70
  4. Step 4: Simplify right side
    359,756.28x = 57,713,937,324.85
  5. Step 5: Solve for x
    x = 57,713,937,324.85/359,756.28
  6. Step 6: Final answer
    x = 160,425.10

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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.