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Finding the Fourth Proportional to 134,798.37, 186,025.31 and 74,369.80

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Solution

The fourth proportional to 134,798.37, 186,025.31 and 74,369.80 is: 102,632.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,798.37 : 186,025.31 = 74,369.80 : x
  2. Step 2: Convert to fraction form
    134,798.37/186,025.31 = 74,369.80/x
  3. Step 3: Cross multiply
    134,798.37x = 186,025.31 × 74,369.80
  4. Step 4: Simplify right side
    134,798.37x = 13,834,665,099.64
  5. Step 5: Solve for x
    x = 13,834,665,099.64/134,798.37
  6. Step 6: Final answer
    x = 102,632.29

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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.