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Finding the Fourth Proportional to 185,162.40, 277,713.90 and 66,772.80

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Solution

The fourth proportional to 185,162.40, 277,713.90 and 66,772.80 is: 100,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,162.40 : 277,713.90 = 66,772.80 : x
  2. Step 2: Convert to fraction form
    185,162.40/277,713.90 = 66,772.80/x
  3. Step 3: Cross multiply
    185,162.40x = 277,713.90 × 66,772.80
  4. Step 4: Simplify right side
    185,162.40x = 18,543,734,701.92
  5. Step 5: Solve for x
    x = 18,543,734,701.92/185,162.40
  6. Step 6: Final answer
    x = 100,148.49

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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.