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Finding the Fourth Proportional to 188,303.43, 259,858.95 and 102,262.47

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Solution

The fourth proportional to 188,303.43, 259,858.95 and 102,262.47 is: 141,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,303.43 : 259,858.95 = 102,262.47 : x
  2. Step 2: Convert to fraction form
    188,303.43/259,858.95 = 102,262.47/x
  3. Step 3: Cross multiply
    188,303.43x = 259,858.95 × 102,262.47
  4. Step 4: Simplify right side
    188,303.43x = 26,573,818,078.61
  5. Step 5: Solve for x
    x = 26,573,818,078.61/188,303.43
  6. Step 6: Final answer
    x = 141,122.33

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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.