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Finding the Fourth Proportional to 340,891.89, 470,432.25 and 187,926.58

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Solution

The fourth proportional to 340,891.89, 470,432.25 and 187,926.58 is: 259,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,891.89 : 470,432.25 = 187,926.58 : x
  2. Step 2: Convert to fraction form
    340,891.89/470,432.25 = 187,926.58/x
  3. Step 3: Cross multiply
    340,891.89x = 470,432.25 × 187,926.58
  4. Step 4: Simplify right side
    340,891.89x = 88,406,722,924.57
  5. Step 5: Solve for x
    x = 88,406,722,924.57/340,891.89
  6. Step 6: Final answer
    x = 259,339.48

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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.