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Finding the Fourth Proportional to 374,166.63, 561,249.95 and 137,406.87

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Solution

The fourth proportional to 374,166.63, 561,249.95 and 137,406.87 is: 206,110.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,166.63 : 561,249.95 = 137,406.87 : x
  2. Step 2: Convert to fraction form
    374,166.63/561,249.95 = 137,406.87/x
  3. Step 3: Cross multiply
    374,166.63x = 561,249.95 × 137,406.87
  4. Step 4: Simplify right side
    374,166.63x = 77,119,598,230.12
  5. Step 5: Solve for x
    x = 77,119,598,230.12/374,166.63
  6. Step 6: Final answer
    x = 206,110.31

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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.