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Finding the Fourth Proportional to 268,272.40, 402,262.80 and 110,516.80

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Solution

The fourth proportional to 268,272.40, 402,262.80 and 110,516.80 is: 165,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,272.40 : 402,262.80 = 110,516.80 : x
  2. Step 2: Convert to fraction form
    268,272.40/402,262.80 = 110,516.80/x
  3. Step 3: Cross multiply
    268,272.40x = 402,262.80 × 110,516.80
  4. Step 4: Simplify right side
    268,272.40x = 44,456,797,415.04
  5. Step 5: Solve for x
    x = 44,456,797,415.04/268,272.40
  6. Step 6: Final answer
    x = 165,715.14

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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.