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Finding the Fourth Proportional to 127,226.40, 190,839.60 and 89,901.60

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Solution

The fourth proportional to 127,226.40, 190,839.60 and 89,901.60 is: 134,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,226.40 : 190,839.60 = 89,901.60 : x
  2. Step 2: Convert to fraction form
    127,226.40/190,839.60 = 89,901.60/x
  3. Step 3: Cross multiply
    127,226.40x = 190,839.60 × 89,901.60
  4. Step 4: Simplify right side
    127,226.40x = 17,156,785,383.36
  5. Step 5: Solve for x
    x = 17,156,785,383.36/127,226.40
  6. Step 6: Final answer
    x = 134,852.40

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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.