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Finding the Fourth Proportional to 169,722.86, 254,486.72 and 69,951.92

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Solution

The fourth proportional to 169,722.86, 254,486.72 and 69,951.92 is: 104,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,722.86 : 254,486.72 = 69,951.92 : x
  2. Step 2: Convert to fraction form
    169,722.86/254,486.72 = 69,951.92/x
  3. Step 3: Cross multiply
    169,722.86x = 254,486.72 × 69,951.92
  4. Step 4: Simplify right side
    169,722.86x = 17,801,833,056.31
  5. Step 5: Solve for x
    x = 17,801,833,056.31/169,722.86
  6. Step 6: Final answer
    x = 104,887.66

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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.