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Finding the Fourth Proportional to 86,859.08, 119,701.71 and 69,611.85

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Solution

The fourth proportional to 86,859.08, 119,701.71 and 69,611.85 is: 95,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,859.08 : 119,701.71 = 69,611.85 : x
  2. Step 2: Convert to fraction form
    86,859.08/119,701.71 = 69,611.85/x
  3. Step 3: Cross multiply
    86,859.08x = 119,701.71 × 69,611.85
  4. Step 4: Simplify right side
    86,859.08x = 8,332,657,481.26
  5. Step 5: Solve for x
    x = 8,332,657,481.26/86,859.08
  6. Step 6: Final answer
    x = 95,933.06

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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.