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Finding the Fourth Proportional to 191,862.34, 287,793.30 and 51,620.96

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Solution

The fourth proportional to 191,862.34, 287,793.30 and 51,620.96 is: 77,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,862.34 : 287,793.30 = 51,620.96 : x
  2. Step 2: Convert to fraction form
    191,862.34/287,793.30 = 51,620.96/x
  3. Step 3: Cross multiply
    191,862.34x = 287,793.30 × 51,620.96
  4. Step 4: Simplify right side
    191,862.34x = 14,856,166,427.57
  5. Step 5: Solve for x
    x = 14,856,166,427.57/191,862.34
  6. Step 6: Final answer
    x = 77,431.38

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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.