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Finding the Fourth Proportional to 114,221.43, 157,630.73 and 63,920.43

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Solution

The fourth proportional to 114,221.43, 157,630.73 and 63,920.43 is: 88,213.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,221.43 : 157,630.73 = 63,920.43 : x
  2. Step 2: Convert to fraction form
    114,221.43/157,630.73 = 63,920.43/x
  3. Step 3: Cross multiply
    114,221.43x = 157,630.73 × 63,920.43
  4. Step 4: Simplify right side
    114,221.43x = 10,075,823,723.21
  5. Step 5: Solve for x
    x = 10,075,823,723.21/114,221.43
  6. Step 6: Final answer
    x = 88,213.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.