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Finding the Fourth Proportional to 251,589.09, 377,303.67 and 83,078.01

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Solution

The fourth proportional to 251,589.09, 377,303.67 and 83,078.01 is: 124,590.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,589.09 : 377,303.67 = 83,078.01 : x
  2. Step 2: Convert to fraction form
    251,589.09/377,303.67 = 83,078.01/x
  3. Step 3: Cross multiply
    251,589.09x = 377,303.67 × 83,078.01
  4. Step 4: Simplify right side
    251,589.09x = 31,345,638,069.30
  5. Step 5: Solve for x
    x = 31,345,638,069.30/251,589.09
  6. Step 6: Final answer
    x = 124,590.61

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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.