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Finding the Fourth Proportional to 79,065.53, 109,113 and 45,073.38

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Solution

The fourth proportional to 79,065.53, 109,113 and 45,073.38 is: 62,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,065.53 : 109,113 = 45,073.38 : x
  2. Step 2: Convert to fraction form
    79,065.53/109,113 = 45,073.38/x
  3. Step 3: Cross multiply
    79,065.53x = 109,113 × 45,073.38
  4. Step 4: Simplify right side
    79,065.53x = 4,918,091,711.94
  5. Step 5: Solve for x
    x = 4,918,091,711.94/79,065.53
  6. Step 6: Final answer
    x = 62,202.73

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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.