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Finding the Fourth Proportional to 348,251.85, 522,290.12 and 134,946.56

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Solution

The fourth proportional to 348,251.85, 522,290.12 and 134,946.56 is: 202,385.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,251.85 : 522,290.12 = 134,946.56 : x
  2. Step 2: Convert to fraction form
    348,251.85/522,290.12 = 134,946.56/x
  3. Step 3: Cross multiply
    348,251.85x = 522,290.12 × 134,946.56
  4. Step 4: Simplify right side
    348,251.85x = 70,481,255,646.98
  5. Step 5: Solve for x
    x = 70,481,255,646.98/348,251.85
  6. Step 6: Final answer
    x = 202,385.88

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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.