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Finding the Fourth Proportional to 191,793.95, 287,278.78 and 155,607.97

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Solution

The fourth proportional to 191,793.95, 287,278.78 and 155,607.97 is: 233,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,793.95 : 287,278.78 = 155,607.97 : x
  2. Step 2: Convert to fraction form
    191,793.95/287,278.78 = 155,607.97/x
  3. Step 3: Cross multiply
    191,793.95x = 287,278.78 × 155,607.97
  4. Step 4: Simplify right side
    191,793.95x = 44,702,865,565.44
  5. Step 5: Solve for x
    x = 44,702,865,565.44/191,793.95
  6. Step 6: Final answer
    x = 233,077.56

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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.