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Finding the Fourth Proportional to 134,585.40, 201,659.40 and 126,712.20

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Solution

The fourth proportional to 134,585.40, 201,659.40 and 126,712.20 is: 189,862.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,585.40 : 201,659.40 = 126,712.20 : x
  2. Step 2: Convert to fraction form
    134,585.40/201,659.40 = 126,712.20/x
  3. Step 3: Cross multiply
    134,585.40x = 201,659.40 × 126,712.20
  4. Step 4: Simplify right side
    134,585.40x = 25,552,706,224.68
  5. Step 5: Solve for x
    x = 25,552,706,224.68/134,585.40
  6. Step 6: Final answer
    x = 189,862.39

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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.