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Finding the Fourth Proportional to 73,867.10, 110,644.65 and 48,919.10

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Solution

The fourth proportional to 73,867.10, 110,644.65 and 48,919.10 is: 73,275.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,867.10 : 110,644.65 = 48,919.10 : x
  2. Step 2: Convert to fraction form
    73,867.10/110,644.65 = 48,919.10/x
  3. Step 3: Cross multiply
    73,867.10x = 110,644.65 × 48,919.10
  4. Step 4: Simplify right side
    73,867.10x = 5,412,636,697.82
  5. Step 5: Solve for x
    x = 5,412,636,697.82/73,867.10
  6. Step 6: Final answer
    x = 73,275.34

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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.