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Finding the Fourth Proportional to 251,767.62, 377,651.54 and 83,287.94

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Solution

The fourth proportional to 251,767.62, 377,651.54 and 83,287.94 is: 124,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,767.62 : 377,651.54 = 83,287.94 : x
  2. Step 2: Convert to fraction form
    251,767.62/377,651.54 = 83,287.94/x
  3. Step 3: Cross multiply
    251,767.62x = 377,651.54 × 83,287.94
  4. Step 4: Simplify right side
    251,767.62x = 31,453,818,804.43
  5. Step 5: Solve for x
    x = 31,453,818,804.43/251,767.62
  6. Step 6: Final answer
    x = 124,931.95

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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.