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Finding the Fourth Proportional to 359,563.86, 496,188.99 and 198,416.79

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Solution

The fourth proportional to 359,563.86, 496,188.99 and 198,416.79 is: 273,810.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,563.86 : 496,188.99 = 198,416.79 : x
  2. Step 2: Convert to fraction form
    359,563.86/496,188.99 = 198,416.79/x
  3. Step 3: Cross multiply
    359,563.86x = 496,188.99 × 198,416.79
  4. Step 4: Simplify right side
    359,563.86x = 98,452,226,629.14
  5. Step 5: Solve for x
    x = 98,452,226,629.14/359,563.86
  6. Step 6: Final answer
    x = 273,810.13

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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.