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Finding the Fourth Proportional to 340,858.76, 470,363.56 and 187,888.52

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Solution

The fourth proportional to 340,858.76, 470,363.56 and 187,888.52 is: 259,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,858.76 : 470,363.56 = 187,888.52 : x
  2. Step 2: Convert to fraction form
    340,858.76/470,363.56 = 187,888.52/x
  3. Step 3: Cross multiply
    340,858.76x = 470,363.56 × 187,888.52
  4. Step 4: Simplify right side
    340,858.76x = 88,375,913,150.33
  5. Step 5: Solve for x
    x = 88,375,913,150.33/340,858.76
  6. Step 6: Final answer
    x = 259,274.29

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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.