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Finding the Fourth Proportional to 167,861.76, 251,666.86 and 101,286.16

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Solution

The fourth proportional to 167,861.76, 251,666.86 and 101,286.16 is: 151,853.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,861.76 : 251,666.86 = 101,286.16 : x
  2. Step 2: Convert to fraction form
    167,861.76/251,666.86 = 101,286.16/x
  3. Step 3: Cross multiply
    167,861.76x = 251,666.86 × 101,286.16
  4. Step 4: Simplify right side
    167,861.76x = 25,490,369,848.66
  5. Step 5: Solve for x
    x = 25,490,369,848.66/167,861.76
  6. Step 6: Final answer
    x = 151,853.35

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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.