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Finding the Fourth Proportional to 268,923.68, 403,500.72 and 111,266.72

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Solution

The fourth proportional to 268,923.68, 403,500.72 and 111,266.72 is: 166,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,923.68 : 403,500.72 = 111,266.72 : x
  2. Step 2: Convert to fraction form
    268,923.68/403,500.72 = 111,266.72/x
  3. Step 3: Cross multiply
    268,923.68x = 403,500.72 × 111,266.72
  4. Step 4: Simplify right side
    268,923.68x = 44,896,201,632.04
  5. Step 5: Solve for x
    x = 44,896,201,632.04/268,923.68
  6. Step 6: Final answer
    x = 166,947.74

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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.