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Finding the Fourth Proportional to 74,296.34, 102,409.09 and 60,843.86

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Solution

The fourth proportional to 74,296.34, 102,409.09 and 60,843.86 is: 83,866.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,296.34 : 102,409.09 = 60,843.86 : x
  2. Step 2: Convert to fraction form
    74,296.34/102,409.09 = 60,843.86/x
  3. Step 3: Cross multiply
    74,296.34x = 102,409.09 × 60,843.86
  4. Step 4: Simplify right side
    74,296.34x = 6,230,963,822.64
  5. Step 5: Solve for x
    x = 6,230,963,822.64/74,296.34
  6. Step 6: Final answer
    x = 83,866.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.