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Finding the Fourth Proportional to 168,696.64, 232,650.56 and 139,970.80

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Solution

The fourth proportional to 168,696.64, 232,650.56 and 139,970.80 is: 193,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,696.64 : 232,650.56 = 139,970.80 : x
  2. Step 2: Convert to fraction form
    168,696.64/232,650.56 = 139,970.80/x
  3. Step 3: Cross multiply
    168,696.64x = 232,650.56 × 139,970.80
  4. Step 4: Simplify right side
    168,696.64x = 32,564,285,003.65
  5. Step 5: Solve for x
    x = 32,564,285,003.65/168,696.64
  6. Step 6: Final answer
    x = 193,034.58

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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.