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Finding the Fourth Proportional to 70,089.50, 96,724.82 and 38,259.54

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Solution

The fourth proportional to 70,089.50, 96,724.82 and 38,259.54 is: 52,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,089.50 : 96,724.82 = 38,259.54 : x
  2. Step 2: Convert to fraction form
    70,089.50/96,724.82 = 38,259.54/x
  3. Step 3: Cross multiply
    70,089.50x = 96,724.82 × 38,259.54
  4. Step 4: Simplify right side
    70,089.50x = 3,700,647,119.78
  5. Step 5: Solve for x
    x = 3,700,647,119.78/70,089.50
  6. Step 6: Final answer
    x = 52,798.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.