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Finding the Fourth Proportional to 67,412.78, 101,040.43 and 50,719.17

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Solution

The fourth proportional to 67,412.78, 101,040.43 and 50,719.17 is: 76,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,412.78 : 101,040.43 = 50,719.17 : x
  2. Step 2: Convert to fraction form
    67,412.78/101,040.43 = 50,719.17/x
  3. Step 3: Cross multiply
    67,412.78x = 101,040.43 × 50,719.17
  4. Step 4: Simplify right side
    67,412.78x = 5,124,686,746.04
  5. Step 5: Solve for x
    x = 5,124,686,746.04/67,412.78
  6. Step 6: Final answer
    x = 76,019.51

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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.