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Finding the Fourth Proportional to 74,726.78, 102,913.00 and 73,093.82

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Solution

The fourth proportional to 74,726.78, 102,913.00 and 73,093.82 is: 100,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,726.78 : 102,913.00 = 73,093.82 : x
  2. Step 2: Convert to fraction form
    74,726.78/102,913.00 = 73,093.82/x
  3. Step 3: Cross multiply
    74,726.78x = 102,913.00 × 73,093.82
  4. Step 4: Simplify right side
    74,726.78x = 7,522,303,600.36
  5. Step 5: Solve for x
    x = 7,522,303,600.36/74,726.78
  6. Step 6: Final answer
    x = 100,664.10

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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.