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Finding the Fourth Proportional to 227,764.60, 341,646.90 and 215,517.40

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Solution

The fourth proportional to 227,764.60, 341,646.90 and 215,517.40 is: 323,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,764.60 : 341,646.90 = 215,517.40 : x
  2. Step 2: Convert to fraction form
    227,764.60/341,646.90 = 215,517.40/x
  3. Step 3: Cross multiply
    227,764.60x = 341,646.90 × 215,517.40
  4. Step 4: Simplify right side
    227,764.60x = 73,630,851,606.06
  5. Step 5: Solve for x
    x = 73,630,851,606.06/227,764.60
  6. Step 6: Final answer
    x = 323,276.10

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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.