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Finding the Fourth Proportional to 70,387.96, 105,570.94 and 23,002.68

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Solution

The fourth proportional to 70,387.96, 105,570.94 and 23,002.68 is: 34,500.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,387.96 : 105,570.94 = 23,002.68 : x
  2. Step 2: Convert to fraction form
    70,387.96/105,570.94 = 23,002.68/x
  3. Step 3: Cross multiply
    70,387.96x = 105,570.94 × 23,002.68
  4. Step 4: Simplify right side
    70,387.96x = 2,428,414,639.75
  5. Step 5: Solve for x
    x = 2,428,414,639.75/70,387.96
  6. Step 6: Final answer
    x = 34,500.42

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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.