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Finding the Fourth Proportional to 243,995.97, 336,714.39 and 136,566

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Solution

The fourth proportional to 243,995.97, 336,714.39 and 136,566 is: 188,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,995.97 : 336,714.39 = 136,566 : x
  2. Step 2: Convert to fraction form
    243,995.97/336,714.39 = 136,566/x
  3. Step 3: Cross multiply
    243,995.97x = 336,714.39 × 136,566
  4. Step 4: Simplify right side
    243,995.97x = 45,983,737,384.74
  5. Step 5: Solve for x
    x = 45,983,737,384.74/243,995.97
  6. Step 6: Final answer
    x = 188,461.05

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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.