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Finding the Fourth Proportional to 162,059.70, 243,089.55 and 68,553.30

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Solution

The fourth proportional to 162,059.70, 243,089.55 and 68,553.30 is: 102,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,059.70 : 243,089.55 = 68,553.30 : x
  2. Step 2: Convert to fraction form
    162,059.70/243,089.55 = 68,553.30/x
  3. Step 3: Cross multiply
    162,059.70x = 243,089.55 × 68,553.30
  4. Step 4: Simplify right side
    162,059.70x = 16,664,590,848.02
  5. Step 5: Solve for x
    x = 16,664,590,848.02/162,059.70
  6. Step 6: Final answer
    x = 102,829.95

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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.