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Finding the Fourth Proportional to 168,778.48, 232,905 and 93,322

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Solution

The fourth proportional to 168,778.48, 232,905 and 93,322 is: 128,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,778.48 : 232,905 = 93,322 : x
  2. Step 2: Convert to fraction form
    168,778.48/232,905 = 93,322/x
  3. Step 3: Cross multiply
    168,778.48x = 232,905 × 93,322
  4. Step 4: Simplify right side
    168,778.48x = 21,735,160,410
  5. Step 5: Solve for x
    x = 21,735,160,410/168,778.48
  6. Step 6: Final answer
    x = 128,779.22

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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.