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Finding the Fourth Proportional to 248,361.74, 372,598.16 and 90,590.19

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Solution

The fourth proportional to 248,361.74, 372,598.16 and 90,590.19 is: 135,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,361.74 : 372,598.16 = 90,590.19 : x
  2. Step 2: Convert to fraction form
    248,361.74/372,598.16 = 90,590.19/x
  3. Step 3: Cross multiply
    248,361.74x = 372,598.16 × 90,590.19
  4. Step 4: Simplify right side
    248,361.74x = 33,753,736,257.86
  5. Step 5: Solve for x
    x = 33,753,736,257.86/248,361.74
  6. Step 6: Final answer
    x = 135,905.54

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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.