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Finding the Fourth Proportional to 356,677.38, 535,085.82 and 132,039.66

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Solution

The fourth proportional to 356,677.38, 535,085.82 and 132,039.66 is: 198,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,677.38 : 535,085.82 = 132,039.66 : x
  2. Step 2: Convert to fraction form
    356,677.38/535,085.82 = 132,039.66/x
  3. Step 3: Cross multiply
    356,677.38x = 535,085.82 × 132,039.66
  4. Step 4: Simplify right side
    356,677.38x = 70,652,549,743.62
  5. Step 5: Solve for x
    x = 70,652,549,743.62/356,677.38
  6. Step 6: Final answer
    x = 198,085.31

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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.