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Finding the Fourth Proportional to 115,296.96, 159,085.50 and 69,998.76

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Solution

The fourth proportional to 115,296.96, 159,085.50 and 69,998.76 is: 96,583.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,296.96 : 159,085.50 = 69,998.76 : x
  2. Step 2: Convert to fraction form
    115,296.96/159,085.50 = 69,998.76/x
  3. Step 3: Cross multiply
    115,296.96x = 159,085.50 × 69,998.76
  4. Step 4: Simplify right side
    115,296.96x = 11,135,787,733.98
  5. Step 5: Solve for x
    x = 11,135,787,733.98/115,296.96
  6. Step 6: Final answer
    x = 96,583.53

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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.