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Finding the Fourth Proportional to 268,271.40, 402,261.30 and 110,515.80

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Solution

The fourth proportional to 268,271.40, 402,261.30 and 110,515.80 is: 165,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,271.40 : 402,261.30 = 110,515.80 : x
  2. Step 2: Convert to fraction form
    268,271.40/402,261.30 = 110,515.80/x
  3. Step 3: Cross multiply
    268,271.40x = 402,261.30 × 110,515.80
  4. Step 4: Simplify right side
    268,271.40x = 44,456,229,378.54
  5. Step 5: Solve for x
    x = 44,456,229,378.54/268,271.40
  6. Step 6: Final answer
    x = 165,713.64

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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.