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Finding the Fourth Proportional to 338,633.66, 467,335.45 and 187,730.66

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Solution

The fourth proportional to 338,633.66, 467,335.45 and 187,730.66 is: 259,079.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,633.66 : 467,335.45 = 187,730.66 : x
  2. Step 2: Convert to fraction form
    338,633.66/467,335.45 = 187,730.66/x
  3. Step 3: Cross multiply
    338,633.66x = 467,335.45 × 187,730.66
  4. Step 4: Simplify right side
    338,633.66x = 87,733,194,047.65
  5. Step 5: Solve for x
    x = 87,733,194,047.65/338,633.66
  6. Step 6: Final answer
    x = 259,079.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.