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Finding the Fourth Proportional to 336,909.60, 504,926.10 and 136,996.92

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Solution

The fourth proportional to 336,909.60, 504,926.10 and 136,996.92 is: 205,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,909.60 : 504,926.10 = 136,996.92 : x
  2. Step 2: Convert to fraction form
    336,909.60/504,926.10 = 136,996.92/x
  3. Step 3: Cross multiply
    336,909.60x = 504,926.10 × 136,996.92
  4. Step 4: Simplify right side
    336,909.60x = 69,173,320,527.61
  5. Step 5: Solve for x
    x = 69,173,320,527.61/336,909.60
  6. Step 6: Final answer
    x = 205,317.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.