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Finding the Fourth Proportional to 179,858.63, 248,208.86 and 99,285.95

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Solution

The fourth proportional to 179,858.63, 248,208.86 and 99,285.95 is: 137,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,858.63 : 248,208.86 = 99,285.95 : x
  2. Step 2: Convert to fraction form
    179,858.63/248,208.86 = 99,285.95/x
  3. Step 3: Cross multiply
    179,858.63x = 248,208.86 × 99,285.95
  4. Step 4: Simplify right side
    179,858.63x = 24,643,651,470.69
  5. Step 5: Solve for x
    x = 24,643,651,470.69/179,858.63
  6. Step 6: Final answer
    x = 137,016.79

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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.