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Finding the Fourth Proportional to 86,501.67, 119,195.17 and 63,804.70

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Solution

The fourth proportional to 86,501.67, 119,195.17 and 63,804.70 is: 87,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,501.67 : 119,195.17 = 63,804.70 : x
  2. Step 2: Convert to fraction form
    86,501.67/119,195.17 = 63,804.70/x
  3. Step 3: Cross multiply
    86,501.67x = 119,195.17 × 63,804.70
  4. Step 4: Simplify right side
    86,501.67x = 7,605,212,063.30
  5. Step 5: Solve for x
    x = 7,605,212,063.30/86,501.67
  6. Step 6: Final answer
    x = 87,919.83

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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.