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Finding the Fourth Proportional to 159,065.73, 219,511.17 and 91,083.74

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Solution

The fourth proportional to 159,065.73, 219,511.17 and 91,083.74 is: 125,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,065.73 : 219,511.17 = 91,083.74 : x
  2. Step 2: Convert to fraction form
    159,065.73/219,511.17 = 91,083.74/x
  3. Step 3: Cross multiply
    159,065.73x = 219,511.17 × 91,083.74
  4. Step 4: Simplify right side
    159,065.73x = 19,993,897,237.82
  5. Step 5: Solve for x
    x = 19,993,897,237.82/159,065.73
  6. Step 6: Final answer
    x = 125,695.82

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1.5x scale

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.