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Finding the Fourth Proportional to 191,405.85, 287,150.28 and 58,282.62

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Solution

The fourth proportional to 191,405.85, 287,150.28 and 58,282.62 is: 87,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,405.85 : 287,150.28 = 58,282.62 : x
  2. Step 2: Convert to fraction form
    191,405.85/287,150.28 = 58,282.62/x
  3. Step 3: Cross multiply
    191,405.85x = 287,150.28 × 58,282.62
  4. Step 4: Simplify right side
    191,405.85x = 16,735,869,216.38
  5. Step 5: Solve for x
    x = 16,735,869,216.38/191,405.85
  6. Step 6: Final answer
    x = 87,436.56

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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.