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Finding the Fourth Proportional to 265,456.05, 398,179.17 and 65,776.92

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Solution

The fourth proportional to 265,456.05, 398,179.17 and 65,776.92 is: 98,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,456.05 : 398,179.17 = 65,776.92 : x
  2. Step 2: Convert to fraction form
    265,456.05/398,179.17 = 65,776.92/x
  3. Step 3: Cross multiply
    265,456.05x = 398,179.17 × 65,776.92
  4. Step 4: Simplify right side
    265,456.05x = 26,190,999,410.76
  5. Step 5: Solve for x
    x = 26,190,999,410.76/265,456.05
  6. Step 6: Final answer
    x = 98,664.16

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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.