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Finding the Fourth Proportional to 374,570.25, 561,855.38 and 111,914.25

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Solution

The fourth proportional to 374,570.25, 561,855.38 and 111,914.25 is: 167,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,570.25 : 561,855.38 = 111,914.25 : x
  2. Step 2: Convert to fraction form
    374,570.25/561,855.38 = 111,914.25/x
  3. Step 3: Cross multiply
    374,570.25x = 561,855.38 × 111,914.25
  4. Step 4: Simplify right side
    374,570.25x = 62,879,622,901.59
  5. Step 5: Solve for x
    x = 62,879,622,901.59/374,570.25
  6. Step 6: Final answer
    x = 167,871.38

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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.