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Finding the Fourth Proportional to 159,790.59, 239,671.31 and 147,261.51

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Solution

The fourth proportional to 159,790.59, 239,671.31 and 147,261.51 is: 220,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,790.59 : 239,671.31 = 147,261.51 : x
  2. Step 2: Convert to fraction form
    159,790.59/239,671.31 = 147,261.51/x
  3. Step 3: Cross multiply
    159,790.59x = 239,671.31 × 147,261.51
  4. Step 4: Simplify right side
    159,790.59x = 35,294,358,277.97
  5. Step 5: Solve for x
    x = 35,294,358,277.97/159,790.59
  6. Step 6: Final answer
    x = 220,878.83

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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.