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Finding the Fourth Proportional to 368,274.06, 552,418.47 and 115,549.20

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Solution

The fourth proportional to 368,274.06, 552,418.47 and 115,549.20 is: 173,326.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,274.06 : 552,418.47 = 115,549.20 : x
  2. Step 2: Convert to fraction form
    368,274.06/552,418.47 = 115,549.20/x
  3. Step 3: Cross multiply
    368,274.06x = 552,418.47 × 115,549.20
  4. Step 4: Simplify right side
    368,274.06x = 63,831,512,273.72
  5. Step 5: Solve for x
    x = 63,831,512,273.72/368,274.06
  6. Step 6: Final answer
    x = 173,326.12

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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.