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Finding the Fourth Proportional to 90,796.70, 127,246.60 and 90,796.70

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Solution

The fourth proportional to 90,796.70, 127,246.60 and 90,796.70 is: 127,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,796.70 : 127,246.60 = 90,796.70 : x
  2. Step 2: Convert to fraction form
    90,796.70/127,246.60 = 90,796.70/x
  3. Step 3: Cross multiply
    90,796.70x = 127,246.60 × 90,796.70
  4. Step 4: Simplify right side
    90,796.70x = 11,553,571,366.22
  5. Step 5: Solve for x
    x = 11,553,571,366.22/90,796.70
  6. Step 6: Final answer
    x = 127,246.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.