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Finding the Fourth Proportional to 178,521.72, 246,357.86 and 97,949.96

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Solution

The fourth proportional to 178,521.72, 246,357.86 and 97,949.96 is: 135,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,521.72 : 246,357.86 = 97,949.96 : x
  2. Step 2: Convert to fraction form
    178,521.72/246,357.86 = 97,949.96/x
  3. Step 3: Cross multiply
    178,521.72x = 246,357.86 × 97,949.96
  4. Step 4: Simplify right side
    178,521.72x = 24,130,742,532.69
  5. Step 5: Solve for x
    x = 24,130,742,532.69/178,521.72
  6. Step 6: Final answer
    x = 135,169.79

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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.