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Finding the Fourth Proportional to 148,390.70, 204,850.12 and 84,716.22

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Solution

The fourth proportional to 148,390.70, 204,850.12 and 84,716.22 is: 116,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,390.70 : 204,850.12 = 84,716.22 : x
  2. Step 2: Convert to fraction form
    148,390.70/204,850.12 = 84,716.22/x
  3. Step 3: Cross multiply
    148,390.70x = 204,850.12 × 84,716.22
  4. Step 4: Simplify right side
    148,390.70x = 17,354,127,832.95
  5. Step 5: Solve for x
    x = 17,354,127,832.95/148,390.70
  6. Step 6: Final answer
    x = 116,948.89

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1.5x scale

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.