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Finding the Fourth Proportional to 168,877.92, 233,015.76 and 100,876.80

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Solution

The fourth proportional to 168,877.92, 233,015.76 and 100,876.80 is: 139,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,877.92 : 233,015.76 = 100,876.80 : x
  2. Step 2: Convert to fraction form
    168,877.92/233,015.76 = 100,876.80/x
  3. Step 3: Cross multiply
    168,877.92x = 233,015.76 × 100,876.80
  4. Step 4: Simplify right side
    168,877.92x = 23,505,884,218.37
  5. Step 5: Solve for x
    x = 23,505,884,218.37/168,877.92
  6. Step 6: Final answer
    x = 139,188.62

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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.