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Finding the Fourth Proportional to 166,955.45, 250,339.48 and 72,126.45

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Solution

The fourth proportional to 166,955.45, 250,339.48 and 72,126.45 is: 108,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,955.45 : 250,339.48 = 72,126.45 : x
  2. Step 2: Convert to fraction form
    166,955.45/250,339.48 = 72,126.45/x
  3. Step 3: Cross multiply
    166,955.45x = 250,339.48 × 72,126.45
  4. Step 4: Simplify right side
    166,955.45x = 18,056,097,806.93
  5. Step 5: Solve for x
    x = 18,056,097,806.93/166,955.45
  6. Step 6: Final answer
    x = 108,149.20

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1.5x scale

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.