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Finding the Fourth Proportional to 269,576.80, 404,247.06 and 100,978.81

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Solution

The fourth proportional to 269,576.80, 404,247.06 and 100,978.81 is: 151,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,576.80 : 404,247.06 = 100,978.81 : x
  2. Step 2: Convert to fraction form
    269,576.80/404,247.06 = 100,978.81/x
  3. Step 3: Cross multiply
    269,576.80x = 404,247.06 × 100,978.81
  4. Step 4: Simplify right side
    269,576.80x = 40,820,386,054.18
  5. Step 5: Solve for x
    x = 40,820,386,054.18/269,576.80
  6. Step 6: Final answer
    x = 151,423.96

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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.