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Finding the Fourth Proportional to 188,332.61, 259,900.83 and 103,449.68

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Solution

The fourth proportional to 188,332.61, 259,900.83 and 103,449.68 is: 142,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,332.61 : 259,900.83 = 103,449.68 : x
  2. Step 2: Convert to fraction form
    188,332.61/259,900.83 = 103,449.68/x
  3. Step 3: Cross multiply
    188,332.61x = 259,900.83 × 103,449.68
  4. Step 4: Simplify right side
    188,332.61x = 26,886,657,695.23
  5. Step 5: Solve for x
    x = 26,886,657,695.23/188,332.61
  6. Step 6: Final answer
    x = 142,761.56

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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.