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Finding the Fourth Proportional to 70,454.76, 105,695.97 and 26,081.88

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Solution

The fourth proportional to 70,454.76, 105,695.97 and 26,081.88 is: 39,127.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,454.76 : 105,695.97 = 26,081.88 : x
  2. Step 2: Convert to fraction form
    70,454.76/105,695.97 = 26,081.88/x
  3. Step 3: Cross multiply
    70,454.76x = 105,695.97 × 26,081.88
  4. Step 4: Simplify right side
    70,454.76x = 2,756,749,606.02
  5. Step 5: Solve for x
    x = 2,756,749,606.02/70,454.76
  6. Step 6: Final answer
    x = 39,127.94

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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.