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Finding the Fourth Proportional to 113,533.60, 170,300.40 and 54,338.80

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Solution

The fourth proportional to 113,533.60, 170,300.40 and 54,338.80 is: 81,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,533.60 : 170,300.40 = 54,338.80 : x
  2. Step 2: Convert to fraction form
    113,533.60/170,300.40 = 54,338.80/x
  3. Step 3: Cross multiply
    113,533.60x = 170,300.40 × 54,338.80
  4. Step 4: Simplify right side
    113,533.60x = 9,253,919,375.52
  5. Step 5: Solve for x
    x = 9,253,919,375.52/113,533.60
  6. Step 6: Final answer
    x = 81,508.20

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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.