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Finding the Fourth Proportional to 205,901.06, 308,813.54 and 63,719.82

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Solution

The fourth proportional to 205,901.06, 308,813.54 and 63,719.82 is: 95,567.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,901.06 : 308,813.54 = 63,719.82 : x
  2. Step 2: Convert to fraction form
    205,901.06/308,813.54 = 63,719.82/x
  3. Step 3: Cross multiply
    205,901.06x = 308,813.54 × 63,719.82
  4. Step 4: Simplify right side
    205,901.06x = 19,677,542,863.76
  5. Step 5: Solve for x
    x = 19,677,542,863.76/205,901.06
  6. Step 6: Final answer
    x = 95,567.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.