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Finding the Fourth Proportional to 138,093.60, 207,144.72 and 44,600.16

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Solution

The fourth proportional to 138,093.60, 207,144.72 and 44,600.16 is: 66,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,093.60 : 207,144.72 = 44,600.16 : x
  2. Step 2: Convert to fraction form
    138,093.60/207,144.72 = 44,600.16/x
  3. Step 3: Cross multiply
    138,093.60x = 207,144.72 × 44,600.16
  4. Step 4: Simplify right side
    138,093.60x = 9,238,687,655.16
  5. Step 5: Solve for x
    x = 9,238,687,655.16/138,093.60
  6. Step 6: Final answer
    x = 66,901.64

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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.