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Finding the Fourth Proportional to 227,636.96, 341,492.40 and 85,493.20

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Solution

The fourth proportional to 227,636.96, 341,492.40 and 85,493.20 is: 128,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,636.96 : 341,492.40 = 85,493.20 : x
  2. Step 2: Convert to fraction form
    227,636.96/341,492.40 = 85,493.20/x
  3. Step 3: Cross multiply
    227,636.96x = 341,492.40 × 85,493.20
  4. Step 4: Simplify right side
    227,636.96x = 29,195,278,051.68
  5. Step 5: Solve for x
    x = 29,195,278,051.68/227,636.96
  6. Step 6: Final answer
    x = 128,253.68

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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.