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Finding the Fourth Proportional to 70,209.73, 105,324.54 and 22,809.66

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Solution

The fourth proportional to 70,209.73, 105,324.54 and 22,809.66 is: 34,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.73 : 105,324.54 = 22,809.66 : x
  2. Step 2: Convert to fraction form
    70,209.73/105,324.54 = 22,809.66/x
  3. Step 3: Cross multiply
    70,209.73x = 105,324.54 × 22,809.66
  4. Step 4: Simplify right side
    70,209.73x = 2,402,416,947.06
  5. Step 5: Solve for x
    x = 2,402,416,947.06/70,209.73
  6. Step 6: Final answer
    x = 34,217.72

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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.