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Finding the Fourth Proportional to 243,027.70, 364,541.55 and 167,989.30

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Solution

The fourth proportional to 243,027.70, 364,541.55 and 167,989.30 is: 251,983.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,027.70 : 364,541.55 = 167,989.30 : x
  2. Step 2: Convert to fraction form
    243,027.70/364,541.55 = 167,989.30/x
  3. Step 3: Cross multiply
    243,027.70x = 364,541.55 × 167,989.30
  4. Step 4: Simplify right side
    243,027.70x = 61,239,079,805.42
  5. Step 5: Solve for x
    x = 61,239,079,805.42/243,027.70
  6. Step 6: Final answer
    x = 251,983.95

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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.