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Finding the Fourth Proportional to 191,418.66, 287,169.57 and 58,295.50

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Solution

The fourth proportional to 191,418.66, 287,169.57 and 58,295.50 is: 87,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,418.66 : 287,169.57 = 58,295.50 : x
  2. Step 2: Convert to fraction form
    191,418.66/287,169.57 = 58,295.50/x
  3. Step 3: Cross multiply
    191,418.66x = 287,169.57 × 58,295.50
  4. Step 4: Simplify right side
    191,418.66x = 16,740,693,667.94
  5. Step 5: Solve for x
    x = 16,740,693,667.94/191,418.66
  6. Step 6: Final answer
    x = 87,455.91

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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.