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Finding the Fourth Proportional to 168,728, 232,824.48 and 93,266.24

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Solution

The fourth proportional to 168,728, 232,824.48 and 93,266.24 is: 128,696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,728 : 232,824.48 = 93,266.24 : x
  2. Step 2: Convert to fraction form
    168,728/232,824.48 = 93,266.24/x
  3. Step 3: Cross multiply
    168,728x = 232,824.48 × 93,266.24
  4. Step 4: Simplify right side
    168,728x = 21,714,663,829.56
  5. Step 5: Solve for x
    x = 21,714,663,829.56/168,728
  6. Step 6: Final answer
    x = 128,696.27

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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.