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Finding the Fourth Proportional to 168,638.49, 232,723.13 and 92,157.21

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Solution

The fourth proportional to 168,638.49, 232,723.13 and 92,157.21 is: 127,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,638.49 : 232,723.13 = 92,157.21 : x
  2. Step 2: Convert to fraction form
    168,638.49/232,723.13 = 92,157.21/x
  3. Step 3: Cross multiply
    168,638.49x = 232,723.13 × 92,157.21
  4. Step 4: Simplify right side
    168,638.49x = 21,447,113,902.48
  5. Step 5: Solve for x
    x = 21,447,113,902.48/168,638.49
  6. Step 6: Final answer
    x = 127,178.05

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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.