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Finding the Fourth Proportional to 167,345.30, 251,016.35 and 40,986.10

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Solution

The fourth proportional to 167,345.30, 251,016.35 and 40,986.10 is: 61,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,345.30 : 251,016.35 = 40,986.10 : x
  2. Step 2: Convert to fraction form
    167,345.30/251,016.35 = 40,986.10/x
  3. Step 3: Cross multiply
    167,345.30x = 251,016.35 × 40,986.10
  4. Step 4: Simplify right side
    167,345.30x = 10,288,181,222.74
  5. Step 5: Solve for x
    x = 10,288,181,222.74/167,345.30
  6. Step 6: Final answer
    x = 61,478.76

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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.