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Finding the Fourth Proportional to 201,063.91, 277,314.45 and 136,582.87

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Solution

The fourth proportional to 201,063.91, 277,314.45 and 136,582.87 is: 188,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,063.91 : 277,314.45 = 136,582.87 : x
  2. Step 2: Convert to fraction form
    201,063.91/277,314.45 = 136,582.87/x
  3. Step 3: Cross multiply
    201,063.91x = 277,314.45 × 136,582.87
  4. Step 4: Simplify right side
    201,063.91x = 37,876,403,473.47
  5. Step 5: Solve for x
    x = 37,876,403,473.47/201,063.91
  6. Step 6: Final answer
    x = 188,379.92

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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.