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Finding the Fourth Proportional to 144,902.80, 217,246.20 and 74,832.40

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Solution

The fourth proportional to 144,902.80, 217,246.20 and 74,832.40 is: 112,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,902.80 : 217,246.20 = 74,832.40 : x
  2. Step 2: Convert to fraction form
    144,902.80/217,246.20 = 74,832.40/x
  3. Step 3: Cross multiply
    144,902.80x = 217,246.20 × 74,832.40
  4. Step 4: Simplify right side
    144,902.80x = 16,257,054,536.88
  5. Step 5: Solve for x
    x = 16,257,054,536.88/144,902.80
  6. Step 6: Final answer
    x = 112,192.83

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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.