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Finding the Fourth Proportional to 126,695.40, 190,043.10 and 124,727.10

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Solution

The fourth proportional to 126,695.40, 190,043.10 and 124,727.10 is: 187,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,695.40 : 190,043.10 = 124,727.10 : x
  2. Step 2: Convert to fraction form
    126,695.40/190,043.10 = 124,727.10/x
  3. Step 3: Cross multiply
    126,695.40x = 190,043.10 × 124,727.10
  4. Step 4: Simplify right side
    126,695.40x = 23,703,524,738.01
  5. Step 5: Solve for x
    x = 23,703,524,738.01/126,695.40
  6. Step 6: Final answer
    x = 187,090.65

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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.