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Finding the Fourth Proportional to 114,440.97, 157,930.44 and 63,455.85

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Solution

The fourth proportional to 114,440.97, 157,930.44 and 63,455.85 is: 87,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,440.97 : 157,930.44 = 63,455.85 : x
  2. Step 2: Convert to fraction form
    114,440.97/157,930.44 = 63,455.85/x
  3. Step 3: Cross multiply
    114,440.97x = 157,930.44 × 63,455.85
  4. Step 4: Simplify right side
    114,440.97x = 10,021,609,993.79
  5. Step 5: Solve for x
    x = 10,021,609,993.79/114,440.97
  6. Step 6: Final answer
    x = 87,570.12

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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.