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Finding the Fourth Proportional to 191,906.10, 287,859.15 and 58,785.30

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Solution

The fourth proportional to 191,906.10, 287,859.15 and 58,785.30 is: 88,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,906.10 : 287,859.15 = 58,785.30 : x
  2. Step 2: Convert to fraction form
    191,906.10/287,859.15 = 58,785.30/x
  3. Step 3: Cross multiply
    191,906.10x = 287,859.15 × 58,785.30
  4. Step 4: Simplify right side
    191,906.10x = 16,921,886,490.50
  5. Step 5: Solve for x
    x = 16,921,886,490.50/191,906.10
  6. Step 6: Final answer
    x = 88,177.95

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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.