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Finding the Fourth Proportional to 168,672, 232,764.24 and 93,218.88

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Solution

The fourth proportional to 168,672, 232,764.24 and 93,218.88 is: 128,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,672 : 232,764.24 = 93,218.88 : x
  2. Step 2: Convert to fraction form
    168,672/232,764.24 = 93,218.88/x
  3. Step 3: Cross multiply
    168,672x = 232,764.24 × 93,218.88
  4. Step 4: Simplify right side
    168,672x = 21,698,021,756.85
  5. Step 5: Solve for x
    x = 21,698,021,756.85/168,672
  6. Step 6: Final answer
    x = 128,640.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.