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Finding the Fourth Proportional to 146,803.61, 220,143.44 and 45,589.25

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Solution

The fourth proportional to 146,803.61, 220,143.44 and 45,589.25 is: 68,364.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,803.61 : 220,143.44 = 45,589.25 : x
  2. Step 2: Convert to fraction form
    146,803.61/220,143.44 = 45,589.25/x
  3. Step 3: Cross multiply
    146,803.61x = 220,143.44 × 45,589.25
  4. Step 4: Simplify right side
    146,803.61x = 10,036,172,993.36
  5. Step 5: Solve for x
    x = 10,036,172,993.36/146,803.61
  6. Step 6: Final answer
    x = 68,364.62

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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.