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Finding the Fourth Proportional to 250,700.12, 376,051.46 and 84,489.56

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Solution

The fourth proportional to 250,700.12, 376,051.46 and 84,489.56 is: 126,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,700.12 : 376,051.46 = 84,489.56 : x
  2. Step 2: Convert to fraction form
    250,700.12/376,051.46 = 84,489.56/x
  3. Step 3: Cross multiply
    250,700.12x = 376,051.46 × 84,489.56
  4. Step 4: Simplify right side
    250,700.12x = 31,772,422,392.76
  5. Step 5: Solve for x
    x = 31,772,422,392.76/250,700.12
  6. Step 6: Final answer
    x = 126,734.77

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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.