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Finding the Fourth Proportional to 200,814.88, 277,127.76 and 115,939.36

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Solution

The fourth proportional to 200,814.88, 277,127.76 and 115,939.36 is: 159,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,814.88 : 277,127.76 = 115,939.36 : x
  2. Step 2: Convert to fraction form
    200,814.88/277,127.76 = 115,939.36/x
  3. Step 3: Cross multiply
    200,814.88x = 277,127.76 × 115,939.36
  4. Step 4: Simplify right side
    200,814.88x = 32,130,015,132.63
  5. Step 5: Solve for x
    x = 32,130,015,132.63/200,814.88
  6. Step 6: Final answer
    x = 159,998.18

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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.