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Finding the Fourth Proportional to 376,843.06, 520,047.52 and 207,077.16

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Solution

The fourth proportional to 376,843.06, 520,047.52 and 207,077.16 is: 285,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,843.06 : 520,047.52 = 207,077.16 : x
  2. Step 2: Convert to fraction form
    376,843.06/520,047.52 = 207,077.16/x
  3. Step 3: Cross multiply
    376,843.06x = 520,047.52 × 207,077.16
  4. Step 4: Simplify right side
    376,843.06x = 107,689,963,506.64
  5. Step 5: Solve for x
    x = 107,689,963,506.64/376,843.06
  6. Step 6: Final answer
    x = 285,768.73

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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.