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Finding the Fourth Proportional to 315,173.52, 472,764.40 and 104,811.44

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Solution

The fourth proportional to 315,173.52, 472,764.40 and 104,811.44 is: 157,218.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,173.52 : 472,764.40 = 104,811.44 : x
  2. Step 2: Convert to fraction form
    315,173.52/472,764.40 = 104,811.44/x
  3. Step 3: Cross multiply
    315,173.52x = 472,764.40 × 104,811.44
  4. Step 4: Simplify right side
    315,173.52x = 49,551,117,544.74
  5. Step 5: Solve for x
    x = 49,551,117,544.74/315,173.52
  6. Step 6: Final answer
    x = 157,218.53

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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.