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Finding the Fourth Proportional to 101,248.20, 151,903.08 and 71,723.16

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Solution

The fourth proportional to 101,248.20, 151,903.08 and 71,723.16 is: 107,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,248.20 : 151,903.08 = 71,723.16 : x
  2. Step 2: Convert to fraction form
    101,248.20/151,903.08 = 71,723.16/x
  3. Step 3: Cross multiply
    101,248.20x = 151,903.08 × 71,723.16
  4. Step 4: Simplify right side
    101,248.20x = 10,894,968,911.33
  5. Step 5: Solve for x
    x = 10,894,968,911.33/101,248.20
  6. Step 6: Final answer
    x = 107,606.54

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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.