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Finding the Fourth Proportional to 52,977.66, 73,109.79 and 29,103.90

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Solution

The fourth proportional to 52,977.66, 73,109.79 and 29,103.90 is: 40,163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,977.66 : 73,109.79 = 29,103.90 : x
  2. Step 2: Convert to fraction form
    52,977.66/73,109.79 = 29,103.90/x
  3. Step 3: Cross multiply
    52,977.66x = 73,109.79 × 29,103.90
  4. Step 4: Simplify right side
    52,977.66x = 2,127,780,017.18
  5. Step 5: Solve for x
    x = 2,127,780,017.18/52,977.66
  6. Step 6: Final answer
    x = 40,163.72

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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.