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Finding the Fourth Proportional to 73,019, 109,561.44 and 41,854.28

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Solution

The fourth proportional to 73,019, 109,561.44 and 41,854.28 is: 62,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,019 : 109,561.44 = 41,854.28 : x
  2. Step 2: Convert to fraction form
    73,019/109,561.44 = 41,854.28/x
  3. Step 3: Cross multiply
    73,019x = 109,561.44 × 41,854.28
  4. Step 4: Simplify right side
    73,019x = 4,585,615,186.96
  5. Step 5: Solve for x
    x = 4,585,615,186.96/73,019
  6. Step 6: Final answer
    x = 62,800.30

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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.