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Finding the Fourth Proportional to 84,718.40, 127,077.60 and 46,664.60

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Solution

The fourth proportional to 84,718.40, 127,077.60 and 46,664.60 is: 69,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,718.40 : 127,077.60 = 46,664.60 : x
  2. Step 2: Convert to fraction form
    84,718.40/127,077.60 = 46,664.60/x
  3. Step 3: Cross multiply
    84,718.40x = 127,077.60 × 46,664.60
  4. Step 4: Simplify right side
    84,718.40x = 5,930,025,372.96
  5. Step 5: Solve for x
    x = 5,930,025,372.96/84,718.40
  6. Step 6: Final answer
    x = 69,996.90

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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.