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Finding the Fourth Proportional to 356,644.27, 535,036.34 and 132,006.61

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Solution

The fourth proportional to 356,644.27, 535,036.34 and 132,006.61 is: 198,035.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,644.27 : 535,036.34 = 132,006.61 : x
  2. Step 2: Convert to fraction form
    356,644.27/535,036.34 = 132,006.61/x
  3. Step 3: Cross multiply
    356,644.27x = 535,036.34 × 132,006.61
  4. Step 4: Simplify right side
    356,644.27x = 70,628,333,726.48
  5. Step 5: Solve for x
    x = 70,628,333,726.48/356,644.27
  6. Step 6: Final answer
    x = 198,035.80

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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.