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Finding the Fourth Proportional to 70,469.44, 105,593.29 and 54,498.07

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Solution

The fourth proportional to 70,469.44, 105,593.29 and 54,498.07 is: 81,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,469.44 : 105,593.29 = 54,498.07 : x
  2. Step 2: Convert to fraction form
    70,469.44/105,593.29 = 54,498.07/x
  3. Step 3: Cross multiply
    70,469.44x = 105,593.29 × 54,498.07
  4. Step 4: Simplify right side
    70,469.44x = 5,754,630,509.95
  5. Step 5: Solve for x
    x = 5,754,630,509.95/70,469.44
  6. Step 6: Final answer
    x = 81,661.36

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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.