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Finding the Fourth Proportional to 122,386.01, 183,452.72 and 51,349.91

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Solution

The fourth proportional to 122,386.01, 183,452.72 and 51,349.91 is: 76,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,386.01 : 183,452.72 = 51,349.91 : x
  2. Step 2: Convert to fraction form
    122,386.01/183,452.72 = 51,349.91/x
  3. Step 3: Cross multiply
    122,386.01x = 183,452.72 × 51,349.91
  4. Step 4: Simplify right side
    122,386.01x = 9,420,279,872.37
  5. Step 5: Solve for x
    x = 9,420,279,872.37/122,386.01
  6. Step 6: Final answer
    x = 76,971.87

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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.