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Finding the Fourth Proportional to 266,866.10, 400,264.59 and 100,632.50

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Solution

The fourth proportional to 266,866.10, 400,264.59 and 100,632.50 is: 150,935.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,866.10 : 400,264.59 = 100,632.50 : x
  2. Step 2: Convert to fraction form
    266,866.10/400,264.59 = 100,632.50/x
  3. Step 3: Cross multiply
    266,866.10x = 400,264.59 × 100,632.50
  4. Step 4: Simplify right side
    266,866.10x = 40,279,626,353.18
  5. Step 5: Solve for x
    x = 40,279,626,353.18/266,866.10
  6. Step 6: Final answer
    x = 150,935.72

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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.