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Finding the Fourth Proportional to 86,863.46, 119,850.90 and 52,871.58

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Solution

The fourth proportional to 86,863.46, 119,850.90 and 52,871.58 is: 72,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.46 : 119,850.90 = 52,871.58 : x
  2. Step 2: Convert to fraction form
    86,863.46/119,850.90 = 52,871.58/x
  3. Step 3: Cross multiply
    86,863.46x = 119,850.90 × 52,871.58
  4. Step 4: Simplify right side
    86,863.46x = 6,336,706,447.42
  5. Step 5: Solve for x
    x = 6,336,706,447.42/86,863.46
  6. Step 6: Final answer
    x = 72,950.20

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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.