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Finding the Fourth Proportional to 376,923.44, 520,158.72 and 207,157.84

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Solution

The fourth proportional to 376,923.44, 520,158.72 and 207,157.84 is: 285,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,923.44 : 520,158.72 = 207,157.84 : x
  2. Step 2: Convert to fraction form
    376,923.44/520,158.72 = 207,157.84/x
  3. Step 3: Cross multiply
    376,923.44x = 520,158.72 × 207,157.84
  4. Step 4: Simplify right side
    376,923.44x = 107,754,956,892.37
  5. Step 5: Solve for x
    x = 107,754,956,892.37/376,923.44
  6. Step 6: Final answer
    x = 285,880.22

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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.