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Finding the Fourth Proportional to 126,843.54, 175,043.70 and 70,254.90

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Solution

The fourth proportional to 126,843.54, 175,043.70 and 70,254.90 is: 96,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.54 : 175,043.70 = 70,254.90 : x
  2. Step 2: Convert to fraction form
    126,843.54/175,043.70 = 70,254.90/x
  3. Step 3: Cross multiply
    126,843.54x = 175,043.70 × 70,254.90
  4. Step 4: Simplify right side
    126,843.54x = 12,297,677,639.13
  5. Step 5: Solve for x
    x = 12,297,677,639.13/126,843.54
  6. Step 6: Final answer
    x = 96,951.55

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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.