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Finding the Fourth Proportional to 368,419.68, 552,629.52 and 102,180.20

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Solution

The fourth proportional to 368,419.68, 552,629.52 and 102,180.20 is: 153,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,419.68 : 552,629.52 = 102,180.20 : x
  2. Step 2: Convert to fraction form
    368,419.68/552,629.52 = 102,180.20/x
  3. Step 3: Cross multiply
    368,419.68x = 552,629.52 × 102,180.20
  4. Step 4: Simplify right side
    368,419.68x = 56,467,792,116.36
  5. Step 5: Solve for x
    x = 56,467,792,116.36/368,419.68
  6. Step 6: Final answer
    x = 153,270.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.