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Finding the Fourth Proportional to 248,197.73, 342,393.64 and 157,395.54

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Solution

The fourth proportional to 248,197.73, 342,393.64 and 157,395.54 is: 217,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,197.73 : 342,393.64 = 157,395.54 : x
  2. Step 2: Convert to fraction form
    248,197.73/342,393.64 = 157,395.54/x
  3. Step 3: Cross multiply
    248,197.73x = 342,393.64 × 157,395.54
  4. Step 4: Simplify right side
    248,197.73x = 53,891,233,376.05
  5. Step 5: Solve for x
    x = 53,891,233,376.05/248,197.73
  6. Step 6: Final answer
    x = 217,130.24

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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.