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Finding the Fourth Proportional to 70,463.12, 97,241.16 and 40,252.88

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Solution

The fourth proportional to 70,463.12, 97,241.16 and 40,252.88 is: 55,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,463.12 : 97,241.16 = 40,252.88 : x
  2. Step 2: Convert to fraction form
    70,463.12/97,241.16 = 40,252.88/x
  3. Step 3: Cross multiply
    70,463.12x = 97,241.16 × 40,252.88
  4. Step 4: Simplify right side
    70,463.12x = 3,914,236,744.54
  5. Step 5: Solve for x
    x = 3,914,236,744.54/70,463.12
  6. Step 6: Final answer
    x = 55,550.15

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Why These Related Problems?

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