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Finding the Fourth Proportional to 82,246.80, 123,370.20 and 29,661.60

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Solution

The fourth proportional to 82,246.80, 123,370.20 and 29,661.60 is: 44,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,246.80 : 123,370.20 = 29,661.60 : x
  2. Step 2: Convert to fraction form
    82,246.80/123,370.20 = 29,661.60/x
  3. Step 3: Cross multiply
    82,246.80x = 123,370.20 × 29,661.60
  4. Step 4: Simplify right side
    82,246.80x = 3,659,357,524.32
  5. Step 5: Solve for x
    x = 3,659,357,524.32/82,246.80
  6. Step 6: Final answer
    x = 44,492.40

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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.