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Finding the Fourth Proportional to 359,689.58, 539,162.57 and 134,891.49

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Solution

The fourth proportional to 359,689.58, 539,162.57 and 134,891.49 is: 202,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,689.58 : 539,162.57 = 134,891.49 : x
  2. Step 2: Convert to fraction form
    359,689.58/539,162.57 = 134,891.49/x
  3. Step 3: Cross multiply
    359,689.58x = 539,162.57 × 134,891.49
  4. Step 4: Simplify right side
    359,689.58x = 72,728,442,756.76
  5. Step 5: Solve for x
    x = 72,728,442,756.76/359,689.58
  6. Step 6: Final answer
    x = 202,197.81

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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.