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Finding the Fourth Proportional to 222,087.42, 306,472.50 and 126,575.69

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Solution

The fourth proportional to 222,087.42, 306,472.50 and 126,575.69 is: 174,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,087.42 : 306,472.50 = 126,575.69 : x
  2. Step 2: Convert to fraction form
    222,087.42/306,472.50 = 126,575.69/x
  3. Step 3: Cross multiply
    222,087.42x = 306,472.50 × 126,575.69
  4. Step 4: Simplify right side
    222,087.42x = 38,791,966,621.16
  5. Step 5: Solve for x
    x = 38,791,966,621.16/222,087.42
  6. Step 6: Final answer
    x = 174,669.81

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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.