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Finding the Fourth Proportional to 159,342.34, 238,865.88 and 54,087.51

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Solution

The fourth proportional to 159,342.34, 238,865.88 and 54,087.51 is: 81,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,342.34 : 238,865.88 = 54,087.51 : x
  2. Step 2: Convert to fraction form
    159,342.34/238,865.88 = 54,087.51/x
  3. Step 3: Cross multiply
    159,342.34x = 238,865.88 × 54,087.51
  4. Step 4: Simplify right side
    159,342.34x = 12,919,660,673.16
  5. Step 5: Solve for x
    x = 12,919,660,673.16/159,342.34
  6. Step 6: Final answer
    x = 81,081.15

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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.