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Finding the Fourth Proportional to 191,902.08, 287,861.76 and 58,772.64

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Solution

The fourth proportional to 191,902.08, 287,861.76 and 58,772.64 is: 88,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,902.08 : 287,861.76 = 58,772.64 : x
  2. Step 2: Convert to fraction form
    191,902.08/287,861.76 = 58,772.64/x
  3. Step 3: Cross multiply
    191,902.08x = 287,861.76 × 58,772.64
  4. Step 4: Simplify right side
    191,902.08x = 16,918,395,590.25
  5. Step 5: Solve for x
    x = 16,918,395,590.25/191,902.08
  6. Step 6: Final answer
    x = 88,161.61

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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.