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Finding the Fourth Proportional to 163,892, 226,167.24 and 91,294.40

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Solution

The fourth proportional to 163,892, 226,167.24 and 91,294.40 is: 125,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,892 : 226,167.24 = 91,294.40 : x
  2. Step 2: Convert to fraction form
    163,892/226,167.24 = 91,294.40/x
  3. Step 3: Cross multiply
    163,892x = 226,167.24 × 91,294.40
  4. Step 4: Simplify right side
    163,892x = 20,647,802,475.46
  5. Step 5: Solve for x
    x = 20,647,802,475.46/163,892
  6. Step 6: Final answer
    x = 125,984.20

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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.