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Finding the Fourth Proportional to 147,249.71, 220,885.75 and 57,253.76

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Solution

The fourth proportional to 147,249.71, 220,885.75 and 57,253.76 is: 85,884.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,249.71 : 220,885.75 = 57,253.76 : x
  2. Step 2: Convert to fraction form
    147,249.71/220,885.75 = 57,253.76/x
  3. Step 3: Cross multiply
    147,249.71x = 220,885.75 × 57,253.76
  4. Step 4: Simplify right side
    147,249.71x = 12,646,538,613.49
  5. Step 5: Solve for x
    x = 12,646,538,613.49/147,249.71
  6. Step 6: Final answer
    x = 85,884.98

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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.