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Finding the Fourth Proportional to 248,369.72, 342,620.16 and 144,910.04

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Solution

The fourth proportional to 248,369.72, 342,620.16 and 144,910.04 is: 199,899.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,369.72 : 342,620.16 = 144,910.04 : x
  2. Step 2: Convert to fraction form
    248,369.72/342,620.16 = 144,910.04/x
  3. Step 3: Cross multiply
    248,369.72x = 342,620.16 × 144,910.04
  4. Step 4: Simplify right side
    248,369.72x = 49,649,101,090.41
  5. Step 5: Solve for x
    x = 49,649,101,090.41/248,369.72
  6. Step 6: Final answer
    x = 199,899.98

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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.