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Finding the Fourth Proportional to 187,611.81, 258,944.49 and 119,613.12

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Solution

The fourth proportional to 187,611.81, 258,944.49 and 119,613.12 is: 165,091.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,611.81 : 258,944.49 = 119,613.12 : x
  2. Step 2: Convert to fraction form
    187,611.81/258,944.49 = 119,613.12/x
  3. Step 3: Cross multiply
    187,611.81x = 258,944.49 × 119,613.12
  4. Step 4: Simplify right side
    187,611.81x = 30,973,158,355.71
  5. Step 5: Solve for x
    x = 30,973,158,355.71/187,611.81
  6. Step 6: Final answer
    x = 165,091.73

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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.