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Finding the Fourth Proportional to 358,229.48, 494,356.72 and 197,081.08

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Solution

The fourth proportional to 358,229.48, 494,356.72 and 197,081.08 is: 271,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,229.48 : 494,356.72 = 197,081.08 : x
  2. Step 2: Convert to fraction form
    358,229.48/494,356.72 = 197,081.08/x
  3. Step 3: Cross multiply
    358,229.48x = 494,356.72 × 197,081.08
  4. Step 4: Simplify right side
    358,229.48x = 97,428,356,282.86
  5. Step 5: Solve for x
    x = 97,428,356,282.86/358,229.48
  6. Step 6: Final answer
    x = 271,971.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.