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Finding the Fourth Proportional to 179,728.52, 248,026.18 and 99,156

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Solution

The fourth proportional to 179,728.52, 248,026.18 and 99,156 is: 136,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,728.52 : 248,026.18 = 99,156 : x
  2. Step 2: Convert to fraction form
    179,728.52/248,026.18 = 99,156/x
  3. Step 3: Cross multiply
    179,728.52x = 248,026.18 × 99,156
  4. Step 4: Simplify right side
    179,728.52x = 24,593,283,904.08
  5. Step 5: Solve for x
    x = 24,593,283,904.08/179,728.52
  6. Step 6: Final answer
    x = 136,835.73

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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.