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Finding the Fourth Proportional to 74,215.92, 102,422.16 and 44,019.12

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Solution

The fourth proportional to 74,215.92, 102,422.16 and 44,019.12 is: 60,748.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,215.92 : 102,422.16 = 44,019.12 : x
  2. Step 2: Convert to fraction form
    74,215.92/102,422.16 = 44,019.12/x
  3. Step 3: Cross multiply
    74,215.92x = 102,422.16 × 44,019.12
  4. Step 4: Simplify right side
    74,215.92x = 4,508,533,351.70
  5. Step 5: Solve for x
    x = 4,508,533,351.70/74,215.92
  6. Step 6: Final answer
    x = 60,748.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.