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Finding the Fourth Proportional to 74,218.52, 111,143.20 and 51,927.54

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Solution

The fourth proportional to 74,218.52, 111,143.20 and 51,927.54 is: 77,762.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,218.52 : 111,143.20 = 51,927.54 : x
  2. Step 2: Convert to fraction form
    74,218.52/111,143.20 = 51,927.54/x
  3. Step 3: Cross multiply
    74,218.52x = 111,143.20 × 51,927.54
  4. Step 4: Simplify right side
    74,218.52x = 5,771,392,963.73
  5. Step 5: Solve for x
    x = 5,771,392,963.73/74,218.52
  6. Step 6: Final answer
    x = 77,762.17

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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.