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Finding the Fourth Proportional to 148,390.67, 204,774.67 and 84,716.03

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Solution

The fourth proportional to 148,390.67, 204,774.67 and 84,716.03 is: 116,905.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,390.67 : 204,774.67 = 84,716.03 : x
  2. Step 2: Convert to fraction form
    148,390.67/204,774.67 = 84,716.03/x
  3. Step 3: Cross multiply
    148,390.67x = 204,774.67 × 84,716.03
  4. Step 4: Simplify right side
    148,390.67x = 17,347,697,086.96
  5. Step 5: Solve for x
    x = 17,347,697,086.96/148,390.67
  6. Step 6: Final answer
    x = 116,905.58

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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.