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Finding the Fourth Proportional to 191,472.96, 287,220.22 and 58,357.56

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Solution

The fourth proportional to 191,472.96, 287,220.22 and 58,357.56 is: 87,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,472.96 : 287,220.22 = 58,357.56 : x
  2. Step 2: Convert to fraction form
    191,472.96/287,220.22 = 58,357.56/x
  3. Step 3: Cross multiply
    191,472.96x = 287,220.22 × 58,357.56
  4. Step 4: Simplify right side
    191,472.96x = 16,761,471,221.86
  5. Step 5: Solve for x
    x = 16,761,471,221.86/191,472.96
  6. Step 6: Final answer
    x = 87,539.63

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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.