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Finding the Fourth Proportional to 74,883.72, 103,338.90 and 41,349

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Solution

The fourth proportional to 74,883.72, 103,338.90 and 41,349 is: 57,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,883.72 : 103,338.90 = 41,349 : x
  2. Step 2: Convert to fraction form
    74,883.72/103,338.90 = 41,349/x
  3. Step 3: Cross multiply
    74,883.72x = 103,338.90 × 41,349
  4. Step 4: Simplify right side
    74,883.72x = 4,272,960,176.10
  5. Step 5: Solve for x
    x = 4,272,960,176.10/74,883.72
  6. Step 6: Final answer
    x = 57,061.27

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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.