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Finding the Fourth Proportional to 194,479.80, 291,683.70 and 54,209.40

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Solution

The fourth proportional to 194,479.80, 291,683.70 and 54,209.40 is: 81,304.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,479.80 : 291,683.70 = 54,209.40 : x
  2. Step 2: Convert to fraction form
    194,479.80/291,683.70 = 54,209.40/x
  3. Step 3: Cross multiply
    194,479.80x = 291,683.70 × 54,209.40
  4. Step 4: Simplify right side
    194,479.80x = 15,811,998,366.78
  5. Step 5: Solve for x
    x = 15,811,998,366.78/194,479.80
  6. Step 6: Final answer
    x = 81,304.07

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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.