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Finding the Fourth Proportional to 135,242.20, 202,863.30 and 36,746.20

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Solution

The fourth proportional to 135,242.20, 202,863.30 and 36,746.20 is: 55,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,242.20 : 202,863.30 = 36,746.20 : x
  2. Step 2: Convert to fraction form
    135,242.20/202,863.30 = 36,746.20/x
  3. Step 3: Cross multiply
    135,242.20x = 202,863.30 × 36,746.20
  4. Step 4: Simplify right side
    135,242.20x = 7,454,455,394.46
  5. Step 5: Solve for x
    x = 7,454,455,394.46/135,242.20
  6. Step 6: Final answer
    x = 55,119.30

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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.