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Finding the Fourth Proportional to 178,967.45, 246,976.76 and 98,395.53

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Solution

The fourth proportional to 178,967.45, 246,976.76 and 98,395.53 is: 135,786.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,967.45 : 246,976.76 = 98,395.53 : x
  2. Step 2: Convert to fraction form
    178,967.45/246,976.76 = 98,395.53/x
  3. Step 3: Cross multiply
    178,967.45x = 246,976.76 × 98,395.53
  4. Step 4: Simplify right side
    178,967.45x = 24,301,409,443.87
  5. Step 5: Solve for x
    x = 24,301,409,443.87/178,967.45
  6. Step 6: Final answer
    x = 135,786.76

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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.