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Finding the Fourth Proportional to 179,893.92, 248,247.09 and 99,319.71

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Solution

The fourth proportional to 179,893.92, 248,247.09 and 99,319.71 is: 137,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,893.92 : 248,247.09 = 99,319.71 : x
  2. Step 2: Convert to fraction form
    179,893.92/248,247.09 = 99,319.71/x
  3. Step 3: Cross multiply
    179,893.92x = 248,247.09 × 99,319.71
  4. Step 4: Simplify right side
    179,893.92x = 24,655,828,987.14
  5. Step 5: Solve for x
    x = 24,655,828,987.14/179,893.92
  6. Step 6: Final answer
    x = 137,057.60

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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.