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Finding the Fourth Proportional to 171,626.40, 257,439.60 and 101,584.80

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Solution

The fourth proportional to 171,626.40, 257,439.60 and 101,584.80 is: 152,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,626.40 : 257,439.60 = 101,584.80 : x
  2. Step 2: Convert to fraction form
    171,626.40/257,439.60 = 101,584.80/x
  3. Step 3: Cross multiply
    171,626.40x = 257,439.60 × 101,584.80
  4. Step 4: Simplify right side
    171,626.40x = 26,151,950,278.08
  5. Step 5: Solve for x
    x = 26,151,950,278.08/171,626.40
  6. Step 6: Final answer
    x = 152,377.20

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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.