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Finding the Fourth Proportional to 374,805.02, 517,243.17 and 205,039.15

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Solution

The fourth proportional to 374,805.02, 517,243.17 and 205,039.15 is: 282,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,805.02 : 517,243.17 = 205,039.15 : x
  2. Step 2: Convert to fraction form
    374,805.02/517,243.17 = 205,039.15/x
  3. Step 3: Cross multiply
    374,805.02x = 517,243.17 × 205,039.15
  4. Step 4: Simplify right side
    374,805.02x = 106,055,099,920.11
  5. Step 5: Solve for x
    x = 106,055,099,920.11/374,805.02
  6. Step 6: Final answer
    x = 282,960.72

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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.