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Finding the Fourth Proportional to 134,644.99, 185,801.70 and 74,216.11

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Solution

The fourth proportional to 134,644.99, 185,801.70 and 74,216.11 is: 102,413.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,644.99 : 185,801.70 = 74,216.11 : x
  2. Step 2: Convert to fraction form
    134,644.99/185,801.70 = 74,216.11/x
  3. Step 3: Cross multiply
    134,644.99x = 185,801.70 × 74,216.11
  4. Step 4: Simplify right side
    134,644.99x = 13,789,479,405.39
  5. Step 5: Solve for x
    x = 13,789,479,405.39/134,644.99
  6. Step 6: Final answer
    x = 102,413.61

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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.