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Finding the Fourth Proportional to 191,766.42, 287,691.18 and 73,437.77

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Solution

The fourth proportional to 191,766.42, 287,691.18 and 73,437.77 is: 110,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,766.42 : 287,691.18 = 73,437.77 : x
  2. Step 2: Convert to fraction form
    191,766.42/287,691.18 = 73,437.77/x
  3. Step 3: Cross multiply
    191,766.42x = 287,691.18 × 73,437.77
  4. Step 4: Simplify right side
    191,766.42x = 21,127,398,340.68
  5. Step 5: Solve for x
    x = 21,127,398,340.68/191,766.42
  6. Step 6: Final answer
    x = 110,172.56

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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.