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Finding the Fourth Proportional to 126,568.40, 189,852.60 and 123,652.40

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Solution

The fourth proportional to 126,568.40, 189,852.60 and 123,652.40 is: 185,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568.40 : 189,852.60 = 123,652.40 : x
  2. Step 2: Convert to fraction form
    126,568.40/189,852.60 = 123,652.40/x
  3. Step 3: Cross multiply
    126,568.40x = 189,852.60 × 123,652.40
  4. Step 4: Simplify right side
    126,568.40x = 23,475,729,636.24
  5. Step 5: Solve for x
    x = 23,475,729,636.24/126,568.40
  6. Step 6: Final answer
    x = 185,478.60

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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.