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Finding the Fourth Proportional to 359,431.85, 539,055.48 and 106,652.55

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Solution

The fourth proportional to 359,431.85, 539,055.48 and 106,652.55 is: 159,951.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,431.85 : 539,055.48 = 106,652.55 : x
  2. Step 2: Convert to fraction form
    359,431.85/539,055.48 = 106,652.55/x
  3. Step 3: Cross multiply
    359,431.85x = 539,055.48 × 106,652.55
  4. Step 4: Simplify right side
    359,431.85x = 57,491,641,533.47
  5. Step 5: Solve for x
    x = 57,491,641,533.47/359,431.85
  6. Step 6: Final answer
    x = 159,951.44

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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.