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Finding the Fourth Proportional to 316,435.78, 474,593.19 and 94,819.78

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Solution

The fourth proportional to 316,435.78, 474,593.19 and 94,819.78 is: 142,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,435.78 : 474,593.19 = 94,819.78 : x
  2. Step 2: Convert to fraction form
    316,435.78/474,593.19 = 94,819.78/x
  3. Step 3: Cross multiply
    316,435.78x = 474,593.19 × 94,819.78
  4. Step 4: Simplify right side
    316,435.78x = 45,000,823,703.98
  5. Step 5: Solve for x
    x = 45,000,823,703.98/316,435.78
  6. Step 6: Final answer
    x = 142,211.55

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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.