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Finding the Fourth Proportional to 68,004.40, 101,812.20 and 41,760.40

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Solution

The fourth proportional to 68,004.40, 101,812.20 and 41,760.40 is: 62,521.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,004.40 : 101,812.20 = 41,760.40 : x
  2. Step 2: Convert to fraction form
    68,004.40/101,812.20 = 41,760.40/x
  3. Step 3: Cross multiply
    68,004.40x = 101,812.20 × 41,760.40
  4. Step 4: Simplify right side
    68,004.40x = 4,251,718,196.88
  5. Step 5: Solve for x
    x = 4,251,718,196.88/68,004.40
  6. Step 6: Final answer
    x = 62,521.22

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1.5x scale

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.