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Finding the Fourth Proportional to 147,134.44, 220,723.62 and 68,256.64

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Solution

The fourth proportional to 147,134.44, 220,723.62 and 68,256.64 is: 102,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,134.44 : 220,723.62 = 68,256.64 : x
  2. Step 2: Convert to fraction form
    147,134.44/220,723.62 = 68,256.64/x
  3. Step 3: Cross multiply
    147,134.44x = 220,723.62 × 68,256.64
  4. Step 4: Simplify right side
    147,134.44x = 15,065,852,669.84
  5. Step 5: Solve for x
    x = 15,065,852,669.84/147,134.44
  6. Step 6: Final answer
    x = 102,395.15

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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.