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Finding the Fourth Proportional to 191,425.85, 287,179.80 and 58,316.83

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Solution

The fourth proportional to 191,425.85, 287,179.80 and 58,316.83 is: 87,487.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,425.85 : 287,179.80 = 58,316.83 : x
  2. Step 2: Convert to fraction form
    191,425.85/287,179.80 = 58,316.83/x
  3. Step 3: Cross multiply
    191,425.85x = 287,179.80 × 58,316.83
  4. Step 4: Simplify right side
    191,425.85x = 16,747,414,639.40
  5. Step 5: Solve for x
    x = 16,747,414,639.40/191,425.85
  6. Step 6: Final answer
    x = 87,487.74

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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.