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Finding the Fourth Proportional to 359,788.32, 539,952.48 and 135,370.08

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Solution

The fourth proportional to 359,788.32, 539,952.48 and 135,370.08 is: 203,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,788.32 : 539,952.48 = 135,370.08 : x
  2. Step 2: Convert to fraction form
    359,788.32/539,952.48 = 135,370.08/x
  3. Step 3: Cross multiply
    359,788.32x = 539,952.48 × 135,370.08
  4. Step 4: Simplify right side
    359,788.32x = 73,093,410,413.80
  5. Step 5: Solve for x
    x = 73,093,410,413.80/359,788.32
  6. Step 6: Final answer
    x = 203,156.71

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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.