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Finding the Fourth Proportional to 179,736, 248,035.68 and 100,248

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Solution

The fourth proportional to 179,736, 248,035.68 and 100,248 is: 138,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,736 : 248,035.68 = 100,248 : x
  2. Step 2: Convert to fraction form
    179,736/248,035.68 = 100,248/x
  3. Step 3: Cross multiply
    179,736x = 248,035.68 × 100,248
  4. Step 4: Simplify right side
    179,736x = 24,865,080,848.64
  5. Step 5: Solve for x
    x = 24,865,080,848.64/179,736
  6. Step 6: Final answer
    x = 138,342.24

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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.