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Finding the Fourth Proportional to 70,281.11, 105,354.01 and 25,883.65

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Solution

The fourth proportional to 70,281.11, 105,354.01 and 25,883.65 is: 38,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,281.11 : 105,354.01 = 25,883.65 : x
  2. Step 2: Convert to fraction form
    70,281.11/105,354.01 = 25,883.65/x
  3. Step 3: Cross multiply
    70,281.11x = 105,354.01 × 25,883.65
  4. Step 4: Simplify right side
    70,281.11x = 2,726,945,664.75
  5. Step 5: Solve for x
    x = 2,726,945,664.75/70,281.11
  6. Step 6: Final answer
    x = 38,800.55

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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.