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Finding the Fourth Proportional to 179,661.76, 247,930.32 and 103,182.48

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Solution

The fourth proportional to 179,661.76, 247,930.32 and 103,182.48 is: 142,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,661.76 : 247,930.32 = 103,182.48 : x
  2. Step 2: Convert to fraction form
    179,661.76/247,930.32 = 103,182.48/x
  3. Step 3: Cross multiply
    179,661.76x = 247,930.32 × 103,182.48
  4. Step 4: Simplify right side
    179,661.76x = 25,582,065,284.79
  5. Step 5: Solve for x
    x = 25,582,065,284.79/179,661.76
  6. Step 6: Final answer
    x = 142,390.15

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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.