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Finding the Fourth Proportional to 191,866.46, 287,676.63 and 79,624.15

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Solution

The fourth proportional to 191,866.46, 287,676.63 and 79,624.15 is: 119,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,866.46 : 287,676.63 = 79,624.15 : x
  2. Step 2: Convert to fraction form
    191,866.46/287,676.63 = 79,624.15/x
  3. Step 3: Cross multiply
    191,866.46x = 287,676.63 × 79,624.15
  4. Step 4: Simplify right side
    191,866.46x = 22,906,006,419.42
  5. Step 5: Solve for x
    x = 22,906,006,419.42/191,866.46
  6. Step 6: Final answer
    x = 119,385.15

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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.