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Finding the Fourth Proportional to 191,756.33, 287,764.10 and 67,098.41

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Solution

The fourth proportional to 191,756.33, 287,764.10 and 67,098.41 is: 100,692.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,756.33 : 287,764.10 = 67,098.41 : x
  2. Step 2: Convert to fraction form
    191,756.33/287,764.10 = 67,098.41/x
  3. Step 3: Cross multiply
    191,756.33x = 287,764.10 × 67,098.41
  4. Step 4: Simplify right side
    191,756.33x = 19,308,513,229.59
  5. Step 5: Solve for x
    x = 19,308,513,229.59/191,756.33
  6. Step 6: Final answer
    x = 100,692.96

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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.