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Finding the Fourth Proportional to 191,927.00, 287,767.31 and 79,684.70

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Solution

The fourth proportional to 191,927.00, 287,767.31 and 79,684.70 is: 119,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,927.00 : 287,767.31 = 79,684.70 : x
  2. Step 2: Convert to fraction form
    191,927.00/287,767.31 = 79,684.70/x
  3. Step 3: Cross multiply
    191,927.00x = 287,767.31 × 79,684.70
  4. Step 4: Simplify right side
    191,927.00x = 22,930,649,929.90
  5. Step 5: Solve for x
    x = 22,930,649,929.90/191,927.00
  6. Step 6: Final answer
    x = 119,475.89

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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.