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Finding the Fourth Proportional to 251,601.90, 377,451.45 and 74,114.70

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Solution

The fourth proportional to 251,601.90, 377,451.45 and 74,114.70 is: 111,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,601.90 : 377,451.45 = 74,114.70 : x
  2. Step 2: Convert to fraction form
    251,601.90/377,451.45 = 74,114.70/x
  3. Step 3: Cross multiply
    251,601.90x = 377,451.45 × 74,114.70
  4. Step 4: Simplify right side
    251,601.90x = 27,974,700,981.32
  5. Step 5: Solve for x
    x = 27,974,700,981.32/251,601.90
  6. Step 6: Final answer
    x = 111,186.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.