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Finding the Fourth Proportional to 145,983.92, 201,512.44 and 113,654.48

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Solution

The fourth proportional to 145,983.92, 201,512.44 and 113,654.48 is: 156,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,983.92 : 201,512.44 = 113,654.48 : x
  2. Step 2: Convert to fraction form
    145,983.92/201,512.44 = 113,654.48/x
  3. Step 3: Cross multiply
    145,983.92x = 201,512.44 × 113,654.48
  4. Step 4: Simplify right side
    145,983.92x = 22,902,791,581.73
  5. Step 5: Solve for x
    x = 22,902,791,581.73/145,983.92
  6. Step 6: Final answer
    x = 156,885.71

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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.