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Finding the Fourth Proportional to 315,245.25, 472,871.93 and 104,883.26

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Solution

The fourth proportional to 315,245.25, 472,871.93 and 104,883.26 is: 157,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,245.25 : 472,871.93 = 104,883.26 : x
  2. Step 2: Convert to fraction form
    315,245.25/472,871.93 = 104,883.26/x
  3. Step 3: Cross multiply
    315,245.25x = 472,871.93 × 104,883.26
  4. Step 4: Simplify right side
    315,245.25x = 49,596,346,692.12
  5. Step 5: Solve for x
    x = 49,596,346,692.12/315,245.25
  6. Step 6: Final answer
    x = 157,326.23

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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.