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Finding the Fourth Proportional to 349,909.60, 482,890.61 and 196,957.66

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Solution

The fourth proportional to 349,909.60, 482,890.61 and 196,957.66 is: 271,810.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,909.60 : 482,890.61 = 196,957.66 : x
  2. Step 2: Convert to fraction form
    349,909.60/482,890.61 = 196,957.66/x
  3. Step 3: Cross multiply
    349,909.60x = 482,890.61 × 196,957.66
  4. Step 4: Simplify right side
    349,909.60x = 95,109,004,581.57
  5. Step 5: Solve for x
    x = 95,109,004,581.57/349,909.60
  6. Step 6: Final answer
    x = 271,810.22

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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.