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Finding the Fourth Proportional to 417,441.39, 626,252.81 and 136,948.11

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Solution

The fourth proportional to 417,441.39, 626,252.81 and 136,948.11 is: 205,451.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,441.39 : 626,252.81 = 136,948.11 : x
  2. Step 2: Convert to fraction form
    417,441.39/626,252.81 = 136,948.11/x
  3. Step 3: Cross multiply
    417,441.39x = 626,252.81 × 136,948.11
  4. Step 4: Simplify right side
    417,441.39x = 85,764,138,026.95
  5. Step 5: Solve for x
    x = 85,764,138,026.95/417,441.39
  6. Step 6: Final answer
    x = 205,451.93

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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.