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Finding the Fourth Proportional to 215,267.76, 322,863.48 and 65,471.76

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Solution

The fourth proportional to 215,267.76, 322,863.48 and 65,471.76 is: 98,196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,267.76 : 322,863.48 = 65,471.76 : x
  2. Step 2: Convert to fraction form
    215,267.76/322,863.48 = 65,471.76/x
  3. Step 3: Cross multiply
    215,267.76x = 322,863.48 × 65,471.76
  4. Step 4: Simplify right side
    215,267.76x = 21,138,440,275.32
  5. Step 5: Solve for x
    x = 21,138,440,275.32/215,267.76
  6. Step 6: Final answer
    x = 98,196.03

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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.