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Finding the Fourth Proportional to 160,765.02, 221,801.22 and 104,187.60

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Solution

The fourth proportional to 160,765.02, 221,801.22 and 104,187.60 is: 143,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,765.02 : 221,801.22 = 104,187.60 : x
  2. Step 2: Convert to fraction form
    160,765.02/221,801.22 = 104,187.60/x
  3. Step 3: Cross multiply
    160,765.02x = 221,801.22 × 104,187.60
  4. Step 4: Simplify right side
    160,765.02x = 23,108,936,788.87
  5. Step 5: Solve for x
    x = 23,108,936,788.87/160,765.02
  6. Step 6: Final answer
    x = 143,743.56

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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.