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Finding the Fourth Proportional to 119,618.57, 179,455.65 and 40,733.48

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Solution

The fourth proportional to 119,618.57, 179,455.65 and 40,733.48 is: 61,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,618.57 : 179,455.65 = 40,733.48 : x
  2. Step 2: Convert to fraction form
    119,618.57/179,455.65 = 40,733.48/x
  3. Step 3: Cross multiply
    119,618.57x = 179,455.65 × 40,733.48
  4. Step 4: Simplify right side
    119,618.57x = 7,309,852,029.22
  5. Step 5: Solve for x
    x = 7,309,852,029.22/119,618.57
  6. Step 6: Final answer
    x = 61,109.68

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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.