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Finding the Fourth Proportional to 128,462.76, 192,444.78 and 94,667.46

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Solution

The fourth proportional to 128,462.76, 192,444.78 and 94,667.46 is: 141,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,462.76 : 192,444.78 = 94,667.46 : x
  2. Step 2: Convert to fraction form
    128,462.76/192,444.78 = 94,667.46/x
  3. Step 3: Cross multiply
    128,462.76x = 192,444.78 × 94,667.46
  4. Step 4: Simplify right side
    128,462.76x = 18,218,258,512.86
  5. Step 5: Solve for x
    x = 18,218,258,512.86/128,462.76
  6. Step 6: Final answer
    x = 141,817.43

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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.