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Finding the Fourth Proportional to 359,455.15, 496,048.15 and 198,310.58

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Solution

The fourth proportional to 359,455.15, 496,048.15 and 198,310.58 is: 273,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,455.15 : 496,048.15 = 198,310.58 : x
  2. Step 2: Convert to fraction form
    359,455.15/496,048.15 = 198,310.58/x
  3. Step 3: Cross multiply
    359,455.15x = 496,048.15 × 198,310.58
  4. Step 4: Simplify right side
    359,455.15x = 98,371,596,334.43
  5. Step 5: Solve for x
    x = 98,371,596,334.43/359,455.15
  6. Step 6: Final answer
    x = 273,668.62

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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.