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Finding the Fourth Proportional to 359,351.12, 539,106.36 and 106,651.76

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Solution

The fourth proportional to 359,351.12, 539,106.36 and 106,651.76 is: 160,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,351.12 : 539,106.36 = 106,651.76 : x
  2. Step 2: Convert to fraction form
    359,351.12/539,106.36 = 106,651.76/x
  3. Step 3: Cross multiply
    359,351.12x = 539,106.36 × 106,651.76
  4. Step 4: Simplify right side
    359,351.12x = 57,496,642,121.19
  5. Step 5: Solve for x
    x = 57,496,642,121.19/359,351.12
  6. Step 6: Final answer
    x = 160,001.29

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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.