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Finding the Fourth Proportional to 208,040.66, 311,873.67 and 74,827.28

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Solution

The fourth proportional to 208,040.66, 311,873.67 and 74,827.28 is: 112,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,040.66 : 311,873.67 = 74,827.28 : x
  2. Step 2: Convert to fraction form
    208,040.66/311,873.67 = 74,827.28/x
  3. Step 3: Cross multiply
    208,040.66x = 311,873.67 × 74,827.28
  4. Step 4: Simplify right side
    208,040.66x = 23,336,658,429.72
  5. Step 5: Solve for x
    x = 23,336,658,429.72/208,040.66
  6. Step 6: Final answer
    x = 112,173.55

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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.