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Finding the Fourth Proportional to 374,342.19, 561,451.77 and 134,406.42

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Solution

The fourth proportional to 374,342.19, 561,451.77 and 134,406.42 is: 201,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,342.19 : 561,451.77 = 134,406.42 : x
  2. Step 2: Convert to fraction form
    374,342.19/561,451.77 = 134,406.42/x
  3. Step 3: Cross multiply
    374,342.19x = 561,451.77 × 134,406.42
  4. Step 4: Simplify right side
    374,342.19x = 75,462,722,408.36
  5. Step 5: Solve for x
    x = 75,462,722,408.36/374,342.19
  6. Step 6: Final answer
    x = 201,587.54

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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.