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Finding the Fourth Proportional to 201,168.74, 277,734.77 and 133,243.93

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Solution

The fourth proportional to 201,168.74, 277,734.77 and 133,243.93 is: 183,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,168.74 : 277,734.77 = 133,243.93 : x
  2. Step 2: Convert to fraction form
    201,168.74/277,734.77 = 133,243.93/x
  3. Step 3: Cross multiply
    201,168.74x = 277,734.77 × 133,243.93
  4. Step 4: Simplify right side
    201,168.74x = 37,006,472,252.45
  5. Step 5: Solve for x
    x = 37,006,472,252.45/201,168.74
  6. Step 6: Final answer
    x = 183,957.37

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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.