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Finding the Fourth Proportional to 111,323.88, 153,625.78 and 61,022.60

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Solution

The fourth proportional to 111,323.88, 153,625.78 and 61,022.60 is: 84,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,323.88 : 153,625.78 = 61,022.60 : x
  2. Step 2: Convert to fraction form
    111,323.88/153,625.78 = 61,022.60/x
  3. Step 3: Cross multiply
    111,323.88x = 153,625.78 × 61,022.60
  4. Step 4: Simplify right side
    111,323.88x = 9,374,644,522.63
  5. Step 5: Solve for x
    x = 9,374,644,522.63/111,323.88
  6. Step 6: Final answer
    x = 84,210.54

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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.