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Finding the Fourth Proportional to 145,093.55, 217,623.92 and 45,245.25

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Solution

The fourth proportional to 145,093.55, 217,623.92 and 45,245.25 is: 67,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,093.55 : 217,623.92 = 45,245.25 : x
  2. Step 2: Convert to fraction form
    145,093.55/217,623.92 = 45,245.25/x
  3. Step 3: Cross multiply
    145,093.55x = 217,623.92 × 45,245.25
  4. Step 4: Simplify right side
    145,093.55x = 9,846,448,440.15
  5. Step 5: Solve for x
    x = 9,846,448,440.15/145,093.55
  6. Step 6: Final answer
    x = 67,862.76

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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.