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Finding the Fourth Proportional to 126,953.40, 190,478.70 and 124,960.80

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Solution

The fourth proportional to 126,953.40, 190,478.70 and 124,960.80 is: 187,489.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,953.40 : 190,478.70 = 124,960.80 : x
  2. Step 2: Convert to fraction form
    126,953.40/190,478.70 = 124,960.80/x
  3. Step 3: Cross multiply
    126,953.40x = 190,478.70 × 124,960.80
  4. Step 4: Simplify right side
    126,953.40x = 23,802,370,734.96
  5. Step 5: Solve for x
    x = 23,802,370,734.96/126,953.40
  6. Step 6: Final answer
    x = 187,489.04

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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.