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Finding the Fourth Proportional to 162,565.66, 243,892.32 and 67,764.34

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Solution

The fourth proportional to 162,565.66, 243,892.32 and 67,764.34 is: 101,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,565.66 : 243,892.32 = 67,764.34 : x
  2. Step 2: Convert to fraction form
    162,565.66/243,892.32 = 67,764.34/x
  3. Step 3: Cross multiply
    162,565.66x = 243,892.32 × 67,764.34
  4. Step 4: Simplify right side
    162,565.66x = 16,527,202,095.87
  5. Step 5: Solve for x
    x = 16,527,202,095.87/162,565.66
  6. Step 6: Final answer
    x = 101,664.78

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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.