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Finding the Fourth Proportional to 70,379.92, 105,585.24 and 23,631.56

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Solution

The fourth proportional to 70,379.92, 105,585.24 and 23,631.56 is: 35,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,379.92 : 105,585.24 = 23,631.56 : x
  2. Step 2: Convert to fraction form
    70,379.92/105,585.24 = 23,631.56/x
  3. Step 3: Cross multiply
    70,379.92x = 105,585.24 × 23,631.56
  4. Step 4: Simplify right side
    70,379.92x = 2,495,143,934.17
  5. Step 5: Solve for x
    x = 2,495,143,934.17/70,379.92
  6. Step 6: Final answer
    x = 35,452.50

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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.