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Finding the Fourth Proportional to 178,563.78, 246,409.91 and 97,989.69

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Solution

The fourth proportional to 178,563.78, 246,409.91 and 97,989.69 is: 135,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,563.78 : 246,409.91 = 97,989.69 : x
  2. Step 2: Convert to fraction form
    178,563.78/246,409.91 = 97,989.69/x
  3. Step 3: Cross multiply
    178,563.78x = 246,409.91 × 97,989.69
  4. Step 4: Simplify right side
    178,563.78x = 24,145,630,693.83
  5. Step 5: Solve for x
    x = 24,145,630,693.83/178,563.78
  6. Step 6: Final answer
    x = 135,221.32

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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.