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Finding the Fourth Proportional to 72,570.92, 108,739.80 and 60,906.92

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Solution

The fourth proportional to 72,570.92, 108,739.80 and 60,906.92 is: 91,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,570.92 : 108,739.80 = 60,906.92 : x
  2. Step 2: Convert to fraction form
    72,570.92/108,739.80 = 60,906.92/x
  3. Step 3: Cross multiply
    72,570.92x = 108,739.80 × 60,906.92
  4. Step 4: Simplify right side
    72,570.92x = 6,623,006,299.42
  5. Step 5: Solve for x
    x = 6,623,006,299.42/72,570.92
  6. Step 6: Final answer
    x = 91,262.54

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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.