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Finding the Fourth Proportional to 185,953.05, 278,772.84 and 80,692.74

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Solution

The fourth proportional to 185,953.05, 278,772.84 and 80,692.74 is: 120,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,953.05 : 278,772.84 = 80,692.74 : x
  2. Step 2: Convert to fraction form
    185,953.05/278,772.84 = 80,692.74/x
  3. Step 3: Cross multiply
    185,953.05x = 278,772.84 × 80,692.74
  4. Step 4: Simplify right side
    185,953.05x = 22,494,944,297.18
  5. Step 5: Solve for x
    x = 22,494,944,297.18/185,953.05
  6. Step 6: Final answer
    x = 120,971.10

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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.