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Finding the Fourth Proportional to 250,343.77, 345,472.98 and 135,624.66

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Solution

The fourth proportional to 250,343.77, 345,472.98 and 135,624.66 is: 187,161.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,343.77 : 345,472.98 = 135,624.66 : x
  2. Step 2: Convert to fraction form
    250,343.77/345,472.98 = 135,624.66/x
  3. Step 3: Cross multiply
    250,343.77x = 345,472.98 × 135,624.66
  4. Step 4: Simplify right side
    250,343.77x = 46,854,655,451.69
  5. Step 5: Solve for x
    x = 46,854,655,451.69/250,343.77
  6. Step 6: Final answer
    x = 187,161.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.