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Finding the Fourth Proportional to 75,252, 103,863.96 and 45,044.06

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Solution

The fourth proportional to 75,252, 103,863.96 and 45,044.06 is: 62,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,252 : 103,863.96 = 45,044.06 : x
  2. Step 2: Convert to fraction form
    75,252/103,863.96 = 45,044.06/x
  3. Step 3: Cross multiply
    75,252x = 103,863.96 × 45,044.06
  4. Step 4: Simplify right side
    75,252x = 4,678,454,446.08
  5. Step 5: Solve for x
    x = 4,678,454,446.08/75,252
  6. Step 6: Final answer
    x = 62,170.50

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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.