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Finding the Fourth Proportional to 215,712.52, 323,569.50 and 65,952.22

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Solution

The fourth proportional to 215,712.52, 323,569.50 and 65,952.22 is: 98,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,712.52 : 323,569.50 = 65,952.22 : x
  2. Step 2: Convert to fraction form
    215,712.52/323,569.50 = 65,952.22/x
  3. Step 3: Cross multiply
    215,712.52x = 323,569.50 × 65,952.22
  4. Step 4: Simplify right side
    215,712.52x = 21,340,126,849.29
  5. Step 5: Solve for x
    x = 21,340,126,849.29/215,712.52
  6. Step 6: Final answer
    x = 98,928.55

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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.