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Finding the Fourth Proportional to 341,937.60, 512,906.40 and 89,217.60

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Solution

The fourth proportional to 341,937.60, 512,906.40 and 89,217.60 is: 133,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,937.60 : 512,906.40 = 89,217.60 : x
  2. Step 2: Convert to fraction form
    341,937.60/512,906.40 = 89,217.60/x
  3. Step 3: Cross multiply
    341,937.60x = 512,906.40 × 89,217.60
  4. Step 4: Simplify right side
    341,937.60x = 45,760,278,032.64
  5. Step 5: Solve for x
    x = 45,760,278,032.64/341,937.60
  6. Step 6: Final answer
    x = 133,826.40

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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.