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Finding the Fourth Proportional to 365,219.40, 547,569.90 and 165,635.40

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Solution

The fourth proportional to 365,219.40, 547,569.90 and 165,635.40 is: 248,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,219.40 : 547,569.90 = 165,635.40 : x
  2. Step 2: Convert to fraction form
    365,219.40/547,569.90 = 165,635.40/x
  3. Step 3: Cross multiply
    365,219.40x = 547,569.90 × 165,635.40
  4. Step 4: Simplify right side
    365,219.40x = 90,696,959,414.46
  5. Step 5: Solve for x
    x = 90,696,959,414.46/365,219.40
  6. Step 6: Final answer
    x = 248,335.55

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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.