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Finding the Fourth Proportional to 116,778.73, 161,154.65 and 63,063.75

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Solution

The fourth proportional to 116,778.73, 161,154.65 and 63,063.75 is: 87,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,778.73 : 161,154.65 = 63,063.75 : x
  2. Step 2: Convert to fraction form
    116,778.73/161,154.65 = 63,063.75/x
  3. Step 3: Cross multiply
    116,778.73x = 161,154.65 × 63,063.75
  4. Step 4: Simplify right side
    116,778.73x = 10,163,016,558.94
  5. Step 5: Solve for x
    x = 10,163,016,558.94/116,778.73
  6. Step 6: Final answer
    x = 87,027.98

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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.