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Finding the Fourth Proportional to 191,474.83, 287,127.36 and 73,063.36

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Solution

The fourth proportional to 191,474.83, 287,127.36 and 73,063.36 is: 109,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,474.83 : 287,127.36 = 73,063.36 : x
  2. Step 2: Convert to fraction form
    191,474.83/287,127.36 = 73,063.36/x
  3. Step 3: Cross multiply
    191,474.83x = 287,127.36 × 73,063.36
  4. Step 4: Simplify right side
    191,474.83x = 20,978,488,951.71
  5. Step 5: Solve for x
    x = 20,978,488,951.71/191,474.83
  6. Step 6: Final answer
    x = 109,562.65

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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.