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Finding the Fourth Proportional to 359,502.72, 496,115.54 and 198,357.89

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Solution

The fourth proportional to 359,502.72, 496,115.54 and 198,357.89 is: 273,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,502.72 : 496,115.54 = 198,357.89 : x
  2. Step 2: Convert to fraction form
    359,502.72/496,115.54 = 198,357.89/x
  3. Step 3: Cross multiply
    359,502.72x = 496,115.54 × 198,357.89
  4. Step 4: Simplify right side
    359,502.72x = 98,408,428,238.24
  5. Step 5: Solve for x
    x = 98,408,428,238.24/359,502.72
  6. Step 6: Final answer
    x = 273,734.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.