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Finding the Fourth Proportional to 379,506.52, 569,066.34 and 126,696.14

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Solution

The fourth proportional to 379,506.52, 569,066.34 and 126,696.14 is: 189,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,506.52 : 569,066.34 = 126,696.14 : x
  2. Step 2: Convert to fraction form
    379,506.52/569,066.34 = 126,696.14/x
  3. Step 3: Cross multiply
    379,506.52x = 569,066.34 × 126,696.14
  4. Step 4: Simplify right side
    379,506.52x = 72,098,508,445.71
  5. Step 5: Solve for x
    x = 72,098,508,445.71/379,506.52
  6. Step 6: Final answer
    x = 189,979.63

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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.