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Finding the Fourth Proportional to 436,079.40, 654,100.44 and 136,553.34

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Solution

The fourth proportional to 436,079.40, 654,100.44 and 136,553.34 is: 204,824.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,079.40 : 654,100.44 = 136,553.34 : x
  2. Step 2: Convert to fraction form
    436,079.40/654,100.44 = 136,553.34/x
  3. Step 3: Cross multiply
    436,079.40x = 654,100.44 × 136,553.34
  4. Step 4: Simplify right side
    436,079.40x = 89,319,599,777.47
  5. Step 5: Solve for x
    x = 89,319,599,777.47/436,079.40
  6. Step 6: Final answer
    x = 204,824.17

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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.