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Finding the Fourth Proportional to 84,774.60, 127,194.30 and 83,446.20

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Solution

The fourth proportional to 84,774.60, 127,194.30 and 83,446.20 is: 125,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,774.60 : 127,194.30 = 83,446.20 : x
  2. Step 2: Convert to fraction form
    84,774.60/127,194.30 = 83,446.20/x
  3. Step 3: Cross multiply
    84,774.60x = 127,194.30 × 83,446.20
  4. Step 4: Simplify right side
    84,774.60x = 10,613,880,996.66
  5. Step 5: Solve for x
    x = 10,613,880,996.66/84,774.60
  6. Step 6: Final answer
    x = 125,201.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.