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Finding the Fourth Proportional to 248,049.55, 371,953.97 and 145,494.90

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Solution

The fourth proportional to 248,049.55, 371,953.97 and 145,494.90 is: 218,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,049.55 : 371,953.97 = 145,494.90 : x
  2. Step 2: Convert to fraction form
    248,049.55/371,953.97 = 145,494.90/x
  3. Step 3: Cross multiply
    248,049.55x = 371,953.97 × 145,494.90
  4. Step 4: Simplify right side
    248,049.55x = 54,117,403,082.51
  5. Step 5: Solve for x
    x = 54,117,403,082.51/248,049.55
  6. Step 6: Final answer
    x = 218,171.74

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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.