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Finding the Fourth Proportional to 113,653.60, 170,443.46 and 53,672.78

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Solution

The fourth proportional to 113,653.60, 170,443.46 and 53,672.78 is: 80,491.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,653.60 : 170,443.46 = 53,672.78 : x
  2. Step 2: Convert to fraction form
    113,653.60/170,443.46 = 53,672.78/x
  3. Step 3: Cross multiply
    113,653.60x = 170,443.46 × 53,672.78
  4. Step 4: Simplify right side
    113,653.60x = 9,148,174,891.31
  5. Step 5: Solve for x
    x = 9,148,174,891.31/113,653.60
  6. Step 6: Final answer
    x = 80,491.73

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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.