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Finding the Fourth Proportional to 70,616.03, 105,924.11 and 49,649.85

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Solution

The fourth proportional to 70,616.03, 105,924.11 and 49,649.85 is: 74,474.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,616.03 : 105,924.11 = 49,649.85 : x
  2. Step 2: Convert to fraction form
    70,616.03/105,924.11 = 49,649.85/x
  3. Step 3: Cross multiply
    70,616.03x = 105,924.11 × 49,649.85
  4. Step 4: Simplify right side
    70,616.03x = 5,259,115,924.63
  5. Step 5: Solve for x
    x = 5,259,115,924.63/70,616.03
  6. Step 6: Final answer
    x = 74,474.82

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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.