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Finding the Fourth Proportional to 161,466.60, 241,908.30 and 131,723.40

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Solution

The fourth proportional to 161,466.60, 241,908.30 and 131,723.40 is: 197,347.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,466.60 : 241,908.30 = 131,723.40 : x
  2. Step 2: Convert to fraction form
    161,466.60/241,908.30 = 131,723.40/x
  3. Step 3: Cross multiply
    161,466.60x = 241,908.30 × 131,723.40
  4. Step 4: Simplify right side
    161,466.60x = 31,864,983,764.22
  5. Step 5: Solve for x
    x = 31,864,983,764.22/161,466.60
  6. Step 6: Final answer
    x = 197,347.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.