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Finding the Fourth Proportional to 144,940.20, 217,410.30 and 109,948.20

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Solution

The fourth proportional to 144,940.20, 217,410.30 and 109,948.20 is: 164,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,940.20 : 217,410.30 = 109,948.20 : x
  2. Step 2: Convert to fraction form
    144,940.20/217,410.30 = 109,948.20/x
  3. Step 3: Cross multiply
    144,940.20x = 217,410.30 × 109,948.20
  4. Step 4: Simplify right side
    144,940.20x = 23,903,871,146.46
  5. Step 5: Solve for x
    x = 23,903,871,146.46/144,940.20
  6. Step 6: Final answer
    x = 164,922.30

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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.