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Finding the Fourth Proportional to 359,790.10, 496,540.29 and 198,659.86

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Solution

The fourth proportional to 359,790.10, 496,540.29 and 198,659.86 is: 274,167.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,790.10 : 496,540.29 = 198,659.86 : x
  2. Step 2: Convert to fraction form
    359,790.10/496,540.29 = 198,659.86/x
  3. Step 3: Cross multiply
    359,790.10x = 496,540.29 × 198,659.86
  4. Step 4: Simplify right side
    359,790.10x = 98,642,624,495.76
  5. Step 5: Solve for x
    x = 98,642,624,495.76/359,790.10
  6. Step 6: Final answer
    x = 274,167.14

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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.