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Finding the Fourth Proportional to 113,843.40, 170,813.70 and 54,648.60

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Solution

The fourth proportional to 113,843.40, 170,813.70 and 54,648.60 is: 81,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,843.40 : 170,813.70 = 54,648.60 : x
  2. Step 2: Convert to fraction form
    113,843.40/170,813.70 = 54,648.60/x
  3. Step 3: Cross multiply
    113,843.40x = 170,813.70 × 54,648.60
  4. Step 4: Simplify right side
    113,843.40x = 9,334,729,565.82
  5. Step 5: Solve for x
    x = 9,334,729,565.82/113,843.40
  6. Step 6: Final answer
    x = 81,996.23

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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.