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Finding the Fourth Proportional to 381,341.16, 571,996.76 and 115,094.43

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Solution

The fourth proportional to 381,341.16, 571,996.76 and 115,094.43 is: 172,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,341.16 : 571,996.76 = 115,094.43 : x
  2. Step 2: Convert to fraction form
    381,341.16/571,996.76 = 115,094.43/x
  3. Step 3: Cross multiply
    381,341.16x = 571,996.76 × 115,094.43
  4. Step 4: Simplify right side
    381,341.16x = 65,833,640,478.57
  5. Step 5: Solve for x
    x = 65,833,640,478.57/381,341.16
  6. Step 6: Final answer
    x = 172,637.12

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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.