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Finding the Fourth Proportional to 86,103.87, 118,823.25 and 47,862.24

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Solution

The fourth proportional to 86,103.87, 118,823.25 and 47,862.24 is: 66,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,103.87 : 118,823.25 = 47,862.24 : x
  2. Step 2: Convert to fraction form
    86,103.87/118,823.25 = 47,862.24/x
  3. Step 3: Cross multiply
    86,103.87x = 118,823.25 × 47,862.24
  4. Step 4: Simplify right side
    86,103.87x = 5,687,146,909.08
  5. Step 5: Solve for x
    x = 5,687,146,909.08/86,103.87
  6. Step 6: Final answer
    x = 66,049.84

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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.