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Finding the Fourth Proportional to 253,515.58, 380,250.69 and 76,062.22

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Solution

The fourth proportional to 253,515.58, 380,250.69 and 76,062.22 is: 114,086.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,515.58 : 380,250.69 = 76,062.22 : x
  2. Step 2: Convert to fraction form
    253,515.58/380,250.69 = 76,062.22/x
  3. Step 3: Cross multiply
    253,515.58x = 380,250.69 × 76,062.22
  4. Step 4: Simplify right side
    253,515.58x = 28,922,711,637.93
  5. Step 5: Solve for x
    x = 28,922,711,637.93/253,515.58
  6. Step 6: Final answer
    x = 114,086.53

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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.