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Finding the Fourth Proportional to 70,871.10, 97,837.11 and 48,327.18

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Solution

The fourth proportional to 70,871.10, 97,837.11 and 48,327.18 is: 66,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,871.10 : 97,837.11 = 48,327.18 : x
  2. Step 2: Convert to fraction form
    70,871.10/97,837.11 = 48,327.18/x
  3. Step 3: Cross multiply
    70,871.10x = 97,837.11 × 48,327.18
  4. Step 4: Simplify right side
    70,871.10x = 4,728,191,625.65
  5. Step 5: Solve for x
    x = 4,728,191,625.65/70,871.10
  6. Step 6: Final answer
    x = 66,715.37

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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.