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Finding the Fourth Proportional to 162,803.70, 244,205.55 and 120,813.30

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Solution

The fourth proportional to 162,803.70, 244,205.55 and 120,813.30 is: 181,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,803.70 : 244,205.55 = 120,813.30 : x
  2. Step 2: Convert to fraction form
    162,803.70/244,205.55 = 120,813.30/x
  3. Step 3: Cross multiply
    162,803.70x = 244,205.55 × 120,813.30
  4. Step 4: Simplify right side
    162,803.70x = 29,503,278,373.82
  5. Step 5: Solve for x
    x = 29,503,278,373.82/162,803.70
  6. Step 6: Final answer
    x = 181,219.95

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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.