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Finding the Fourth Proportional to 255,621.15, 352,728.27 and 148,168.98

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Solution

The fourth proportional to 255,621.15, 352,728.27 and 148,168.98 is: 204,456.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,621.15 : 352,728.27 = 148,168.98 : x
  2. Step 2: Convert to fraction form
    255,621.15/352,728.27 = 148,168.98/x
  3. Step 3: Cross multiply
    255,621.15x = 352,728.27 × 148,168.98
  4. Step 4: Simplify right side
    255,621.15x = 52,263,387,983.06
  5. Step 5: Solve for x
    x = 52,263,387,983.06/255,621.15
  6. Step 6: Final answer
    x = 204,456.43

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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.