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Finding the Fourth Proportional to 129,882.64, 194,667.20 and 63,222.88

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Solution

The fourth proportional to 129,882.64, 194,667.20 and 63,222.88 is: 94,758.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,882.64 : 194,667.20 = 63,222.88 : x
  2. Step 2: Convert to fraction form
    129,882.64/194,667.20 = 63,222.88/x
  3. Step 3: Cross multiply
    129,882.64x = 194,667.20 × 63,222.88
  4. Step 4: Simplify right side
    129,882.64x = 12,307,421,025.54
  5. Step 5: Solve for x
    x = 12,307,421,025.54/129,882.64
  6. Step 6: Final answer
    x = 94,758.01

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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.