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Finding the Fourth Proportional to 251,712.54, 377,559.90 and 109,557.54

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Solution

The fourth proportional to 251,712.54, 377,559.90 and 109,557.54 is: 164,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,712.54 : 377,559.90 = 109,557.54 : x
  2. Step 2: Convert to fraction form
    251,712.54/377,559.90 = 109,557.54/x
  3. Step 3: Cross multiply
    251,712.54x = 377,559.90 × 109,557.54
  4. Step 4: Simplify right side
    251,712.54x = 41,364,533,846.65
  5. Step 5: Solve for x
    x = 41,364,533,846.65/251,712.54
  6. Step 6: Final answer
    x = 164,332.43

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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.