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Finding the Fourth Proportional to 340,888.97, 470,429.87 and 187,932.69

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Solution

The fourth proportional to 340,888.97, 470,429.87 and 187,932.69 is: 259,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,888.97 : 470,429.87 = 187,932.69 : x
  2. Step 2: Convert to fraction form
    340,888.97/470,429.87 = 187,932.69/x
  3. Step 3: Cross multiply
    340,888.97x = 470,429.87 × 187,932.69
  4. Step 4: Simplify right side
    340,888.97x = 88,409,151,395.28
  5. Step 5: Solve for x
    x = 88,409,151,395.28/340,888.97
  6. Step 6: Final answer
    x = 259,348.82

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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.