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Finding the Fourth Proportional to 166,871.93, 250,132.93 and 78,050.57

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Solution

The fourth proportional to 166,871.93, 250,132.93 and 78,050.57 is: 116,994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,871.93 : 250,132.93 = 78,050.57 : x
  2. Step 2: Convert to fraction form
    166,871.93/250,132.93 = 78,050.57/x
  3. Step 3: Cross multiply
    166,871.93x = 250,132.93 × 78,050.57
  4. Step 4: Simplify right side
    166,871.93x = 19,523,016,121.35
  5. Step 5: Solve for x
    x = 19,523,016,121.35/166,871.93
  6. Step 6: Final answer
    x = 116,994.01

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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.