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Finding the Fourth Proportional to 98,285.01, 135,495.90 and 83,116.68

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Solution

The fourth proportional to 98,285.01, 135,495.90 and 83,116.68 is: 114,584.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,285.01 : 135,495.90 = 83,116.68 : x
  2. Step 2: Convert to fraction form
    98,285.01/135,495.90 = 83,116.68/x
  3. Step 3: Cross multiply
    98,285.01x = 135,495.90 × 83,116.68
  4. Step 4: Simplify right side
    98,285.01x = 11,261,969,361.61
  5. Step 5: Solve for x
    x = 11,261,969,361.61/98,285.01
  6. Step 6: Final answer
    x = 114,584.81

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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.