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Finding the Fourth Proportional to 73,165.19, 100,965.89 and 42,950.03

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Solution

The fourth proportional to 73,165.19, 100,965.89 and 42,950.03 is: 59,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,165.19 : 100,965.89 = 42,950.03 : x
  2. Step 2: Convert to fraction form
    73,165.19/100,965.89 = 42,950.03/x
  3. Step 3: Cross multiply
    73,165.19x = 100,965.89 × 42,950.03
  4. Step 4: Simplify right side
    73,165.19x = 4,336,487,607.02
  5. Step 5: Solve for x
    x = 4,336,487,607.02/73,165.19
  6. Step 6: Final answer
    x = 59,269.82

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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.