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Finding the Fourth Proportional to 331,348.56, 497,038.20 and 94,724.88

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Solution

The fourth proportional to 331,348.56, 497,038.20 and 94,724.88 is: 142,091.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,348.56 : 497,038.20 = 94,724.88 : x
  2. Step 2: Convert to fraction form
    331,348.56/497,038.20 = 94,724.88/x
  3. Step 3: Cross multiply
    331,348.56x = 497,038.20 × 94,724.88
  4. Step 4: Simplify right side
    331,348.56x = 47,081,883,850.42
  5. Step 5: Solve for x
    x = 47,081,883,850.42/331,348.56
  6. Step 6: Final answer
    x = 142,091.71

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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.