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Finding the Fourth Proportional to 191,387.42, 287,142.60 and 58,293.44

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Solution

The fourth proportional to 191,387.42, 287,142.60 and 58,293.44 is: 87,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,387.42 : 287,142.60 = 58,293.44 : x
  2. Step 2: Convert to fraction form
    191,387.42/287,142.60 = 58,293.44/x
  3. Step 3: Cross multiply
    191,387.42x = 287,142.60 × 58,293.44
  4. Step 4: Simplify right side
    191,387.42x = 16,738,529,924.54
  5. Step 5: Solve for x
    x = 16,738,529,924.54/191,387.42
  6. Step 6: Final answer
    x = 87,458.88

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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.