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Finding the Fourth Proportional to 376,830.53, 520,020.23 and 207,061.01

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Solution

The fourth proportional to 376,830.53, 520,020.23 and 207,061.01 is: 285,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,830.53 : 520,020.23 = 207,061.01 : x
  2. Step 2: Convert to fraction form
    376,830.53/520,020.23 = 207,061.01/x
  3. Step 3: Cross multiply
    376,830.53x = 520,020.23 × 207,061.01
  4. Step 4: Simplify right side
    376,830.53x = 107,675,910,408.83
  5. Step 5: Solve for x
    x = 107,675,910,408.83/376,830.53
  6. Step 6: Final answer
    x = 285,740.95

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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.