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Finding the Fourth Proportional to 375,076.17, 517,604.11 and 202,994.47

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Solution

The fourth proportional to 375,076.17, 517,604.11 and 202,994.47 is: 280,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,076.17 : 517,604.11 = 202,994.47 : x
  2. Step 2: Convert to fraction form
    375,076.17/517,604.11 = 202,994.47/x
  3. Step 3: Cross multiply
    375,076.17x = 517,604.11 × 202,994.47
  4. Step 4: Simplify right side
    375,076.17x = 105,070,772,118.79
  5. Step 5: Solve for x
    x = 105,070,772,118.79/375,076.17
  6. Step 6: Final answer
    x = 280,131.83

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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.