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Finding the Fourth Proportional to 75,488.76, 113,246.76 and 31,091.28

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Solution

The fourth proportional to 75,488.76, 113,246.76 and 31,091.28 is: 46,642.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,488.76 : 113,246.76 = 31,091.28 : x
  2. Step 2: Convert to fraction form
    75,488.76/113,246.76 = 31,091.28/x
  3. Step 3: Cross multiply
    75,488.76x = 113,246.76 × 31,091.28
  4. Step 4: Simplify right side
    75,488.76x = 3,520,986,724.25
  5. Step 5: Solve for x
    x = 3,520,986,724.25/75,488.76
  6. Step 6: Final answer
    x = 46,642.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.