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Finding the Fourth Proportional to 86,611.68, 119,487.96 and 58,268.16

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Solution

The fourth proportional to 86,611.68, 119,487.96 and 58,268.16 is: 80,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,611.68 : 119,487.96 = 58,268.16 : x
  2. Step 2: Convert to fraction form
    86,611.68/119,487.96 = 58,268.16/x
  3. Step 3: Cross multiply
    86,611.68x = 119,487.96 × 58,268.16
  4. Step 4: Simplify right side
    86,611.68x = 6,962,343,571.35
  5. Step 5: Solve for x
    x = 6,962,343,571.35/86,611.68
  6. Step 6: Final answer
    x = 80,385.74

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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.