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Finding the Fourth Proportional to 70,572.92, 105,848.46 and 23,187.88

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Solution

The fourth proportional to 70,572.92, 105,848.46 and 23,187.88 is: 34,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,572.92 : 105,848.46 = 23,187.88 : x
  2. Step 2: Convert to fraction form
    70,572.92/105,848.46 = 23,187.88/x
  3. Step 3: Cross multiply
    70,572.92x = 105,848.46 × 23,187.88
  4. Step 4: Simplify right side
    70,572.92x = 2,454,401,388.66
  5. Step 5: Solve for x
    x = 2,454,401,388.66/70,572.92
  6. Step 6: Final answer
    x = 34,778.23

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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.