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Finding the Fourth Proportional to 191,757.05, 287,572.97 and 63,638.92

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Solution

The fourth proportional to 191,757.05, 287,572.97 and 63,638.92 is: 95,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,757.05 : 287,572.97 = 63,638.92 : x
  2. Step 2: Convert to fraction form
    191,757.05/287,572.97 = 63,638.92/x
  3. Step 3: Cross multiply
    191,757.05x = 287,572.97 × 63,638.92
  4. Step 4: Simplify right side
    191,757.05x = 18,300,831,475.93
  5. Step 5: Solve for x
    x = 18,300,831,475.93/191,757.05
  6. Step 6: Final answer
    x = 95,437.60

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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.