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Finding the Fourth Proportional to 366,908.64, 550,363.56 and 100,672.80

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Solution

The fourth proportional to 366,908.64, 550,363.56 and 100,672.80 is: 151,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,908.64 : 550,363.56 = 100,672.80 : x
  2. Step 2: Convert to fraction form
    366,908.64/550,363.56 = 100,672.80/x
  3. Step 3: Cross multiply
    366,908.64x = 550,363.56 × 100,672.80
  4. Step 4: Simplify right side
    366,908.64x = 55,406,640,603.17
  5. Step 5: Solve for x
    x = 55,406,640,603.17/366,908.64
  6. Step 6: Final answer
    x = 151,009.36

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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.