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Finding the Fourth Proportional to 371,906.55, 557,846.73 and 161,544.51

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Solution

The fourth proportional to 371,906.55, 557,846.73 and 161,544.51 is: 242,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,906.55 : 557,846.73 = 161,544.51 : x
  2. Step 2: Convert to fraction form
    371,906.55/557,846.73 = 161,544.51/x
  3. Step 3: Cross multiply
    371,906.55x = 557,846.73 × 161,544.51
  4. Step 4: Simplify right side
    371,906.55x = 90,117,076,652.95
  5. Step 5: Solve for x
    x = 90,117,076,652.95/371,906.55
  6. Step 6: Final answer
    x = 242,311.08

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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.