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Finding the Fourth Proportional to 76,995.42, 106,250.66 and 48,330.54

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Solution

The fourth proportional to 76,995.42, 106,250.66 and 48,330.54 is: 66,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,995.42 : 106,250.66 = 48,330.54 : x
  2. Step 2: Convert to fraction form
    76,995.42/106,250.66 = 48,330.54/x
  3. Step 3: Cross multiply
    76,995.42x = 106,250.66 × 48,330.54
  4. Step 4: Simplify right side
    76,995.42x = 5,135,151,773.16
  5. Step 5: Solve for x
    x = 5,135,151,773.16/76,995.42
  6. Step 6: Final answer
    x = 66,694.25

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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.