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Finding the Fourth Proportional to 84,812.56, 127,644.31 and 63,861.16

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Solution

The fourth proportional to 84,812.56, 127,644.31 and 63,861.16 is: 96,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,812.56 : 127,644.31 = 63,861.16 : x
  2. Step 2: Convert to fraction form
    84,812.56/127,644.31 = 63,861.16/x
  3. Step 3: Cross multiply
    84,812.56x = 127,644.31 × 63,861.16
  4. Step 4: Simplify right side
    84,812.56x = 8,151,513,704.00
  5. Step 5: Solve for x
    x = 8,151,513,704.00/84,812.56
  6. Step 6: Final answer
    x = 96,112.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.