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Finding the Fourth Proportional to 144,800.70, 217,395.45 and 92,442.30

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Solution

The fourth proportional to 144,800.70, 217,395.45 and 92,442.30 is: 138,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,800.70 : 217,395.45 = 92,442.30 : x
  2. Step 2: Convert to fraction form
    144,800.70/217,395.45 = 92,442.30/x
  3. Step 3: Cross multiply
    144,800.70x = 217,395.45 × 92,442.30
  4. Step 4: Simplify right side
    144,800.70x = 20,096,535,407.54
  5. Step 5: Solve for x
    x = 20,096,535,407.54/144,800.70
  6. Step 6: Final answer
    x = 138,787.56

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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.