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Finding the Fourth Proportional to 75,311.57, 103,926.22 and 43,045.22

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Solution

The fourth proportional to 75,311.57, 103,926.22 and 43,045.22 is: 59,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,311.57 : 103,926.22 = 43,045.22 : x
  2. Step 2: Convert to fraction form
    75,311.57/103,926.22 = 43,045.22/x
  3. Step 3: Cross multiply
    75,311.57x = 103,926.22 × 43,045.22
  4. Step 4: Simplify right side
    75,311.57x = 4,473,526,376.42
  5. Step 5: Solve for x
    x = 4,473,526,376.42/75,311.57
  6. Step 6: Final answer
    x = 59,400.26

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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.