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Finding the Fourth Proportional to 168,640.40, 232,714.60 and 93,184.08

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Solution

The fourth proportional to 168,640.40, 232,714.60 and 93,184.08 is: 128,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,640.40 : 232,714.60 = 93,184.08 : x
  2. Step 2: Convert to fraction form
    168,640.40/232,714.60 = 93,184.08/x
  3. Step 3: Cross multiply
    168,640.40x = 232,714.60 × 93,184.08
  4. Step 4: Simplify right side
    168,640.40x = 21,685,295,903.57
  5. Step 5: Solve for x
    x = 21,685,295,903.57/168,640.40
  6. Step 6: Final answer
    x = 128,588.97

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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.