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Finding the Fourth Proportional to 104,755.92, 157,009.08 and 72,994.08

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Solution

The fourth proportional to 104,755.92, 157,009.08 and 72,994.08 is: 109,404.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,755.92 : 157,009.08 = 72,994.08 : x
  2. Step 2: Convert to fraction form
    104,755.92/157,009.08 = 72,994.08/x
  3. Step 3: Cross multiply
    104,755.92x = 157,009.08 × 72,994.08
  4. Step 4: Simplify right side
    104,755.92x = 11,460,733,346.25
  5. Step 5: Solve for x
    x = 11,460,733,346.25/104,755.92
  6. Step 6: Final answer
    x = 109,404.16

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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.