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Finding the Fourth Proportional to 67,956.40, 101,934.60 and 53,959.60

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Solution

The fourth proportional to 67,956.40, 101,934.60 and 53,959.60 is: 80,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,956.40 : 101,934.60 = 53,959.60 : x
  2. Step 2: Convert to fraction form
    67,956.40/101,934.60 = 53,959.60/x
  3. Step 3: Cross multiply
    67,956.40x = 101,934.60 × 53,959.60
  4. Step 4: Simplify right side
    67,956.40x = 5,500,350,242.16
  5. Step 5: Solve for x
    x = 5,500,350,242.16/67,956.40
  6. Step 6: Final answer
    x = 80,939.40

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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.