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Finding the Fourth Proportional to 114,221.80, 157,625.94 and 63,921.16

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Solution

The fourth proportional to 114,221.80, 157,625.94 and 63,921.16 is: 88,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,221.80 : 157,625.94 = 63,921.16 : x
  2. Step 2: Convert to fraction form
    114,221.80/157,625.94 = 63,921.16/x
  3. Step 3: Cross multiply
    114,221.80x = 157,625.94 × 63,921.16
  4. Step 4: Simplify right side
    114,221.80x = 10,075,632,930.89
  5. Step 5: Solve for x
    x = 10,075,632,930.89/114,221.80
  6. Step 6: Final answer
    x = 88,211.12

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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.