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Finding the Fourth Proportional to 359,689.44, 496,368.63 and 198,544.53

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Solution

The fourth proportional to 359,689.44, 496,368.63 and 198,544.53 is: 273,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,689.44 : 496,368.63 = 198,544.53 : x
  2. Step 2: Convert to fraction form
    359,689.44/496,368.63 = 198,544.53/x
  3. Step 3: Cross multiply
    359,689.44x = 496,368.63 × 198,544.53
  4. Step 4: Simplify right side
    359,689.44x = 98,551,276,350.09
  5. Step 5: Solve for x
    x = 98,551,276,350.09/359,689.44
  6. Step 6: Final answer
    x = 273,989.91

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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.