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Finding the Fourth Proportional to 342,606.84, 513,614.94 and 132,392.28

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Solution

The fourth proportional to 342,606.84, 513,614.94 and 132,392.28 is: 198,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,606.84 : 513,614.94 = 132,392.28 : x
  2. Step 2: Convert to fraction form
    342,606.84/513,614.94 = 132,392.28/x
  3. Step 3: Cross multiply
    342,606.84x = 513,614.94 × 132,392.28
  4. Step 4: Simplify right side
    342,606.84x = 67,998,652,948.66
  5. Step 5: Solve for x
    x = 67,998,652,948.66/342,606.84
  6. Step 6: Final answer
    x = 198,474.30

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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.