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Finding the Fourth Proportional to 359,940.20, 539,910.30 and 160,260.20

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Solution

The fourth proportional to 359,940.20, 539,910.30 and 160,260.20 is: 240,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,940.20 : 539,910.30 = 160,260.20 : x
  2. Step 2: Convert to fraction form
    359,940.20/539,910.30 = 160,260.20/x
  3. Step 3: Cross multiply
    359,940.20x = 539,910.30 × 160,260.20
  4. Step 4: Simplify right side
    359,940.20x = 86,526,132,660.06
  5. Step 5: Solve for x
    x = 86,526,132,660.06/359,940.20
  6. Step 6: Final answer
    x = 240,390.30

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1.5x scale

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.