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Finding the Fourth Proportional to 436,159.06, 654,238.38 and 136,663.18

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Solution

The fourth proportional to 436,159.06, 654,238.38 and 136,663.18 is: 204,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,159.06 : 654,238.38 = 136,663.18 : x
  2. Step 2: Convert to fraction form
    436,159.06/654,238.38 = 136,663.18/x
  3. Step 3: Cross multiply
    436,159.06x = 654,238.38 × 136,663.18
  4. Step 4: Simplify right side
    436,159.06x = 89,410,294,217.66
  5. Step 5: Solve for x
    x = 89,410,294,217.66/436,159.06
  6. Step 6: Final answer
    x = 204,994.70

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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.