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Finding the Fourth Proportional to 70,812.72, 106,221.48 and 24,059.52

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Solution

The fourth proportional to 70,812.72, 106,221.48 and 24,059.52 is: 36,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,812.72 : 106,221.48 = 24,059.52 : x
  2. Step 2: Convert to fraction form
    70,812.72/106,221.48 = 24,059.52/x
  3. Step 3: Cross multiply
    70,812.72x = 106,221.48 × 24,059.52
  4. Step 4: Simplify right side
    70,812.72x = 2,555,637,822.49
  5. Step 5: Solve for x
    x = 2,555,637,822.49/70,812.72
  6. Step 6: Final answer
    x = 36,090.10

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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.