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Finding the Fourth Proportional to 126,546.30, 190,038.15 and 67,497.30

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Solution

The fourth proportional to 126,546.30, 190,038.15 and 67,497.30 is: 101,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,546.30 : 190,038.15 = 67,497.30 : x
  2. Step 2: Convert to fraction form
    126,546.30/190,038.15 = 67,497.30/x
  3. Step 3: Cross multiply
    126,546.30x = 190,038.15 × 67,497.30
  4. Step 4: Simplify right side
    126,546.30x = 12,827,062,022.00
  5. Step 5: Solve for x
    x = 12,827,062,022.00/126,546.30
  6. Step 6: Final answer
    x = 101,362.60

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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.