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Finding the Fourth Proportional to 141,632.92, 195,445.92 and 77,958.46

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Solution

The fourth proportional to 141,632.92, 195,445.92 and 77,958.46 is: 107,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,632.92 : 195,445.92 = 77,958.46 : x
  2. Step 2: Convert to fraction form
    141,632.92/195,445.92 = 77,958.46/x
  3. Step 3: Cross multiply
    141,632.92x = 195,445.92 × 77,958.46
  4. Step 4: Simplify right side
    141,632.92x = 15,236,662,936.48
  5. Step 5: Solve for x
    x = 15,236,662,936.48/141,632.92
  6. Step 6: Final answer
    x = 107,578.54

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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.