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Finding the Fourth Proportional to 217,033.20, 325,549.80 and 76,773.60

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Solution

The fourth proportional to 217,033.20, 325,549.80 and 76,773.60 is: 115,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,033.20 : 325,549.80 = 76,773.60 : x
  2. Step 2: Convert to fraction form
    217,033.20/325,549.80 = 76,773.60/x
  3. Step 3: Cross multiply
    217,033.20x = 325,549.80 × 76,773.60
  4. Step 4: Simplify right side
    217,033.20x = 24,993,630,125.28
  5. Step 5: Solve for x
    x = 24,993,630,125.28/217,033.20
  6. Step 6: Final answer
    x = 115,160.40

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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.