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Finding the Fourth Proportional to 75,251, 103,862.58 and 45,043.06

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Solution

The fourth proportional to 75,251, 103,862.58 and 45,043.06 is: 62,169.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,251 : 103,862.58 = 45,043.06 : x
  2. Step 2: Convert to fraction form
    75,251/103,862.58 = 45,043.06/x
  3. Step 3: Cross multiply
    75,251x = 103,862.58 × 45,043.06
  4. Step 4: Simplify right side
    75,251x = 4,678,288,422.69
  5. Step 5: Solve for x
    x = 4,678,288,422.69/75,251
  6. Step 6: Final answer
    x = 62,169.12

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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.