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Finding the Fourth Proportional to 248,661.72, 343,153.94 and 141,232.64

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Solution

The fourth proportional to 248,661.72, 343,153.94 and 141,232.64 is: 194,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,661.72 : 343,153.94 = 141,232.64 : x
  2. Step 2: Convert to fraction form
    248,661.72/343,153.94 = 141,232.64/x
  3. Step 3: Cross multiply
    248,661.72x = 343,153.94 × 141,232.64
  4. Step 4: Simplify right side
    248,661.72x = 48,464,534,450.67
  5. Step 5: Solve for x
    x = 48,464,534,450.67/248,661.72
  6. Step 6: Final answer
    x = 194,901.47

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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.