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Finding the Fourth Proportional to 248,739.78, 373,109.66 and 61,751.28

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Solution

The fourth proportional to 248,739.78, 373,109.66 and 61,751.28 is: 92,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,739.78 : 373,109.66 = 61,751.28 : x
  2. Step 2: Convert to fraction form
    248,739.78/373,109.66 = 61,751.28/x
  3. Step 3: Cross multiply
    248,739.78x = 373,109.66 × 61,751.28
  4. Step 4: Simplify right side
    248,739.78x = 23,039,999,085.36
  5. Step 5: Solve for x
    x = 23,039,999,085.36/248,739.78
  6. Step 6: Final answer
    x = 92,626.92

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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.