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Finding the Fourth Proportional to 201,081.02, 277,461.73 and 115,026.33

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Solution

The fourth proportional to 201,081.02, 277,461.73 and 115,026.33 is: 158,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,081.02 : 277,461.73 = 115,026.33 : x
  2. Step 2: Convert to fraction form
    201,081.02/277,461.73 = 115,026.33/x
  3. Step 3: Cross multiply
    201,081.02x = 277,461.73 × 115,026.33
  4. Step 4: Simplify right side
    201,081.02x = 31,915,403,817.38
  5. Step 5: Solve for x
    x = 31,915,403,817.38/201,081.02
  6. Step 6: Final answer
    x = 158,719.13

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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.