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Finding the Fourth Proportional to 113,846.60, 170,705.90 and 43,728.20

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Solution

The fourth proportional to 113,846.60, 170,705.90 and 43,728.20 is: 65,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,846.60 : 170,705.90 = 43,728.20 : x
  2. Step 2: Convert to fraction form
    113,846.60/170,705.90 = 43,728.20/x
  3. Step 3: Cross multiply
    113,846.60x = 170,705.90 × 43,728.20
  4. Step 4: Simplify right side
    113,846.60x = 7,464,661,736.38
  5. Step 5: Solve for x
    x = 7,464,661,736.38/113,846.60
  6. Step 6: Final answer
    x = 65,567.72

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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.