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Finding the Fourth Proportional to 179,116, 247,181.52 and 99,628

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Solution

The fourth proportional to 179,116, 247,181.52 and 99,628 is: 137,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,116 : 247,181.52 = 99,628 : x
  2. Step 2: Convert to fraction form
    179,116/247,181.52 = 99,628/x
  3. Step 3: Cross multiply
    179,116x = 247,181.52 × 99,628
  4. Step 4: Simplify right side
    179,116x = 24,626,200,474.56
  5. Step 5: Solve for x
    x = 24,626,200,474.56/179,116
  6. Step 6: Final answer
    x = 137,487.44

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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.