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Finding the Fourth Proportional to 70,379.20, 105,569.88 and 23,632.48

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Solution

The fourth proportional to 70,379.20, 105,569.88 and 23,632.48 is: 35,449.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,379.20 : 105,569.88 = 23,632.48 : x
  2. Step 2: Convert to fraction form
    70,379.20/105,569.88 = 23,632.48/x
  3. Step 3: Cross multiply
    70,379.20x = 105,569.88 × 23,632.48
  4. Step 4: Simplify right side
    70,379.20x = 2,494,878,077.70
  5. Step 5: Solve for x
    x = 2,494,878,077.70/70,379.20
  6. Step 6: Final answer
    x = 35,449.08

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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.