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Finding the Fourth Proportional to 162,058.20, 243,087.30 and 68,551.80

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Solution

The fourth proportional to 162,058.20, 243,087.30 and 68,551.80 is: 102,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,058.20 : 243,087.30 = 68,551.80 : x
  2. Step 2: Convert to fraction form
    162,058.20/243,087.30 = 68,551.80/x
  3. Step 3: Cross multiply
    162,058.20x = 243,087.30 × 68,551.80
  4. Step 4: Simplify right side
    162,058.20x = 16,664,071,972.14
  5. Step 5: Solve for x
    x = 16,664,071,972.14/162,058.20
  6. Step 6: Final answer
    x = 102,827.70

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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.