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Finding the Fourth Proportional to 356,649.89, 535,050.36 and 132,012.18

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Solution

The fourth proportional to 356,649.89, 535,050.36 and 132,012.18 is: 198,046.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,649.89 : 535,050.36 = 132,012.18 : x
  2. Step 2: Convert to fraction form
    356,649.89/535,050.36 = 132,012.18/x
  3. Step 3: Cross multiply
    356,649.89x = 535,050.36 × 132,012.18
  4. Step 4: Simplify right side
    356,649.89x = 70,633,164,433.38
  5. Step 5: Solve for x
    x = 70,633,164,433.38/356,649.89
  6. Step 6: Final answer
    x = 198,046.23

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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.