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Finding the Fourth Proportional to 200,649.61, 276,801.06 and 120,060.91

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Solution

The fourth proportional to 200,649.61, 276,801.06 and 120,060.91 is: 165,626.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,649.61 : 276,801.06 = 120,060.91 : x
  2. Step 2: Convert to fraction form
    200,649.61/276,801.06 = 120,060.91/x
  3. Step 3: Cross multiply
    200,649.61x = 276,801.06 × 120,060.91
  4. Step 4: Simplify right side
    200,649.61x = 33,232,987,152.56
  5. Step 5: Solve for x
    x = 33,232,987,152.56/200,649.61
  6. Step 6: Final answer
    x = 165,626.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.