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Finding the Fourth Proportional to 134,251.20, 201,146.40 and 63,979.20

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Solution

The fourth proportional to 134,251.20, 201,146.40 and 63,979.20 is: 95,859.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,251.20 : 201,146.40 = 63,979.20 : x
  2. Step 2: Convert to fraction form
    134,251.20/201,146.40 = 63,979.20/x
  3. Step 3: Cross multiply
    134,251.20x = 201,146.40 × 63,979.20
  4. Step 4: Simplify right side
    134,251.20x = 12,869,185,754.88
  5. Step 5: Solve for x
    x = 12,869,185,754.88/134,251.20
  6. Step 6: Final answer
    x = 95,859.00

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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.