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Finding the Fourth Proportional to 330,637.59, 495,991.04 and 141,118.11

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Solution

The fourth proportional to 330,637.59, 495,991.04 and 141,118.11 is: 211,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,637.59 : 495,991.04 = 141,118.11 : x
  2. Step 2: Convert to fraction form
    330,637.59/495,991.04 = 141,118.11/x
  3. Step 3: Cross multiply
    330,637.59x = 495,991.04 × 141,118.11
  4. Step 4: Simplify right side
    330,637.59x = 69,993,317,436.14
  5. Step 5: Solve for x
    x = 69,993,317,436.14/330,637.59
  6. Step 6: Final answer
    x = 211,691.95

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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.