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Finding the Fourth Proportional to 207,492.30, 311,238.45 and 188,793.45

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Solution

The fourth proportional to 207,492.30, 311,238.45 and 188,793.45 is: 283,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,492.30 : 311,238.45 = 188,793.45 : x
  2. Step 2: Convert to fraction form
    207,492.30/311,238.45 = 188,793.45/x
  3. Step 3: Cross multiply
    207,492.30x = 311,238.45 × 188,793.45
  4. Step 4: Simplify right side
    207,492.30x = 58,759,780,748.15
  5. Step 5: Solve for x
    x = 58,759,780,748.15/207,492.30
  6. Step 6: Final answer
    x = 283,190.18

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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.