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Finding the Fourth Proportional to 119,910.92, 179,830.31 and 98,798.63

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Solution

The fourth proportional to 119,910.92, 179,830.31 and 98,798.63 is: 148,168.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,910.92 : 179,830.31 = 98,798.63 : x
  2. Step 2: Convert to fraction form
    119,910.92/179,830.31 = 98,798.63/x
  3. Step 3: Cross multiply
    119,910.92x = 179,830.31 × 98,798.63
  4. Step 4: Simplify right side
    119,910.92x = 17,766,986,867.33
  5. Step 5: Solve for x
    x = 17,766,986,867.33/119,910.92
  6. Step 6: Final answer
    x = 148,168.22

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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.