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Finding the Fourth Proportional to 359,742.72, 496,448.99 and 198,597.87

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Solution

The fourth proportional to 359,742.72, 496,448.99 and 198,597.87 is: 274,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,742.72 : 496,448.99 = 198,597.87 : x
  2. Step 2: Convert to fraction form
    359,742.72/496,448.99 = 198,597.87/x
  3. Step 3: Cross multiply
    359,742.72x = 496,448.99 × 198,597.87
  4. Step 4: Simplify right side
    359,742.72x = 98,593,710,984.66
  5. Step 5: Solve for x
    x = 98,593,710,984.66/359,742.72
  6. Step 6: Final answer
    x = 274,067.29

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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.