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Finding the Fourth Proportional to 243,511.63, 336,053.28 and 136,081.97

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Solution

The fourth proportional to 243,511.63, 336,053.28 and 136,081.97 is: 187,797.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,511.63 : 336,053.28 = 136,081.97 : x
  2. Step 2: Convert to fraction form
    243,511.63/336,053.28 = 136,081.97/x
  3. Step 3: Cross multiply
    243,511.63x = 336,053.28 × 136,081.97
  4. Step 4: Simplify right side
    243,511.63x = 45,730,793,965.17
  5. Step 5: Solve for x
    x = 45,730,793,965.17/243,511.63
  6. Step 6: Final answer
    x = 187,797.17

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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.