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Finding the Fourth Proportional to 159,334.31, 239,009.40 and 45,499.01

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Solution

The fourth proportional to 159,334.31, 239,009.40 and 45,499.01 is: 68,250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,334.31 : 239,009.40 = 45,499.01 : x
  2. Step 2: Convert to fraction form
    159,334.31/239,009.40 = 45,499.01/x
  3. Step 3: Cross multiply
    159,334.31x = 239,009.40 × 45,499.01
  4. Step 4: Simplify right side
    159,334.31x = 10,874,689,885.65
  5. Step 5: Solve for x
    x = 10,874,689,885.65/159,334.31
  6. Step 6: Final answer
    x = 68,250.78

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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.