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Finding the Fourth Proportional to 82,936.60, 124,404.90 and 47,858.20

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Solution

The fourth proportional to 82,936.60, 124,404.90 and 47,858.20 is: 71,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,936.60 : 124,404.90 = 47,858.20 : x
  2. Step 2: Convert to fraction form
    82,936.60/124,404.90 = 47,858.20/x
  3. Step 3: Cross multiply
    82,936.60x = 124,404.90 × 47,858.20
  4. Step 4: Simplify right side
    82,936.60x = 5,953,794,585.18
  5. Step 5: Solve for x
    x = 5,953,794,585.18/82,936.60
  6. Step 6: Final answer
    x = 71,787.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.