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Finding the Fourth Proportional to 117,966.28, 162,794.52 and 64,251.54

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Solution

The fourth proportional to 117,966.28, 162,794.52 and 64,251.54 is: 88,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,966.28 : 162,794.52 = 64,251.54 : x
  2. Step 2: Convert to fraction form
    117,966.28/162,794.52 = 64,251.54/x
  3. Step 3: Cross multiply
    117,966.28x = 162,794.52 × 64,251.54
  4. Step 4: Simplify right side
    117,966.28x = 10,459,798,613.56
  5. Step 5: Solve for x
    x = 10,459,798,613.56/117,966.28
  6. Step 6: Final answer
    x = 88,667.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.