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Finding the Fourth Proportional to 69,015.76, 103,462.84 and 45,593.04

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Solution

The fourth proportional to 69,015.76, 103,462.84 and 45,593.04 is: 68,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,015.76 : 103,462.84 = 45,593.04 : x
  2. Step 2: Convert to fraction form
    69,015.76/103,462.84 = 45,593.04/x
  3. Step 3: Cross multiply
    69,015.76x = 103,462.84 × 45,593.04
  4. Step 4: Simplify right side
    69,015.76x = 4,717,185,402.63
  5. Step 5: Solve for x
    x = 4,717,185,402.63/69,015.76
  6. Step 6: Final answer
    x = 68,349.39

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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.