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Finding the Fourth Proportional to 74,948.59, 103,428.97 and 41,414.59

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Solution

The fourth proportional to 74,948.59, 103,428.97 and 41,414.59 is: 57,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,948.59 : 103,428.97 = 41,414.59 : x
  2. Step 2: Convert to fraction form
    74,948.59/103,428.97 = 41,414.59/x
  3. Step 3: Cross multiply
    74,948.59x = 103,428.97 × 41,414.59
  4. Step 4: Simplify right side
    74,948.59x = 4,283,468,386.67
  5. Step 5: Solve for x
    x = 4,283,468,386.67/74,948.59
  6. Step 6: Final answer
    x = 57,152.09

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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.