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Finding the Fourth Proportional to 359,669.70, 496,356.21 and 196,335.90

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Solution

The fourth proportional to 359,669.70, 496,356.21 and 196,335.90 is: 270,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,669.70 : 496,356.21 = 196,335.90 : x
  2. Step 2: Convert to fraction form
    359,669.70/496,356.21 = 196,335.90/x
  3. Step 3: Cross multiply
    359,669.70x = 496,356.21 × 196,335.90
  4. Step 4: Simplify right side
    359,669.70x = 97,452,543,210.94
  5. Step 5: Solve for x
    x = 97,452,543,210.94/359,669.70
  6. Step 6: Final answer
    x = 270,950.11

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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.