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Finding the Fourth Proportional to 105,998.70, 158,998.05 and 46,803.90

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Solution

The fourth proportional to 105,998.70, 158,998.05 and 46,803.90 is: 70,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,998.70 : 158,998.05 = 46,803.90 : x
  2. Step 2: Convert to fraction form
    105,998.70/158,998.05 = 46,803.90/x
  3. Step 3: Cross multiply
    105,998.70x = 158,998.05 × 46,803.90
  4. Step 4: Simplify right side
    105,998.70x = 7,441,728,832.40
  5. Step 5: Solve for x
    x = 7,441,728,832.40/105,998.70
  6. Step 6: Final answer
    x = 70,205.85

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Similar ratio
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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.