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Finding the Fourth Proportional to 165,078.72, 247,738.32 and 59,906.16

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Solution

The fourth proportional to 165,078.72, 247,738.32 and 59,906.16 is: 89,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,078.72 : 247,738.32 = 59,906.16 : x
  2. Step 2: Convert to fraction form
    165,078.72/247,738.32 = 59,906.16/x
  3. Step 3: Cross multiply
    165,078.72x = 247,738.32 × 59,906.16
  4. Step 4: Simplify right side
    165,078.72x = 14,841,051,436.05
  5. Step 5: Solve for x
    x = 14,841,051,436.05/165,078.72
  6. Step 6: Final answer
    x = 89,902.87

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1.5x scale

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.