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Finding the Fourth Proportional to 162,032.92, 243,105.30 and 67,313.98

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Solution

The fourth proportional to 162,032.92, 243,105.30 and 67,313.98 is: 100,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,032.92 : 243,105.30 = 67,313.98 : x
  2. Step 2: Convert to fraction form
    162,032.92/243,105.30 = 67,313.98/x
  3. Step 3: Cross multiply
    162,032.92x = 243,105.30 × 67,313.98
  4. Step 4: Simplify right side
    162,032.92x = 16,364,385,302.09
  5. Step 5: Solve for x
    x = 16,364,385,302.09/162,032.92
  6. Step 6: Final answer
    x = 100,994.20

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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.