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Finding the Fourth Proportional to 126,843.15, 175,043.43 and 70,254.48

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Solution

The fourth proportional to 126,843.15, 175,043.43 and 70,254.48 is: 96,951.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.15 : 175,043.43 = 70,254.48 : x
  2. Step 2: Convert to fraction form
    126,843.15/175,043.43 = 70,254.48/x
  3. Step 3: Cross multiply
    126,843.15x = 175,043.43 × 70,254.48
  4. Step 4: Simplify right side
    126,843.15x = 12,297,585,152.07
  5. Step 5: Solve for x
    x = 12,297,585,152.07/126,843.15
  6. Step 6: Final answer
    x = 96,951.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.