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Finding the Fourth Proportional to 119,321.73, 178,944.73 and 40,417.47

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Solution

The fourth proportional to 119,321.73, 178,944.73 and 40,417.47 is: 60,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,321.73 : 178,944.73 = 40,417.47 : x
  2. Step 2: Convert to fraction form
    119,321.73/178,944.73 = 40,417.47/x
  3. Step 3: Cross multiply
    119,321.73x = 178,944.73 × 40,417.47
  4. Step 4: Simplify right side
    119,321.73x = 7,232,493,155.39
  5. Step 5: Solve for x
    x = 7,232,493,155.39/119,321.73
  6. Step 6: Final answer
    x = 60,613.38

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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.