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Finding the Fourth Proportional to 159,121.89, 238,665.02 and 40,796.01

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Solution

The fourth proportional to 159,121.89, 238,665.02 and 40,796.01 is: 61,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,121.89 : 238,665.02 = 40,796.01 : x
  2. Step 2: Convert to fraction form
    159,121.89/238,665.02 = 40,796.01/x
  3. Step 3: Cross multiply
    159,121.89x = 238,665.02 × 40,796.01
  4. Step 4: Simplify right side
    159,121.89x = 9,736,580,338.59
  5. Step 5: Solve for x
    x = 9,736,580,338.59/159,121.89
  6. Step 6: Final answer
    x = 61,189.45

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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.