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Finding the Fourth Proportional to 191,793.78, 287,722.85 and 58,642.83

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Solution

The fourth proportional to 191,793.78, 287,722.85 and 58,642.83 is: 87,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,793.78 : 287,722.85 = 58,642.83 : x
  2. Step 2: Convert to fraction form
    191,793.78/287,722.85 = 58,642.83/x
  3. Step 3: Cross multiply
    191,793.78x = 287,722.85 × 58,642.83
  4. Step 4: Simplify right side
    191,793.78x = 16,872,881,886.45
  5. Step 5: Solve for x
    x = 16,872,881,886.45/191,793.78
  6. Step 6: Final answer
    x = 87,974.08

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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.