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Finding the Fourth Proportional to 146,990.68, 220,527.18 and 47,156.68

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Solution

The fourth proportional to 146,990.68, 220,527.18 and 47,156.68 is: 70,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,990.68 : 220,527.18 = 47,156.68 : x
  2. Step 2: Convert to fraction form
    146,990.68/220,527.18 = 47,156.68/x
  3. Step 3: Cross multiply
    146,990.68x = 220,527.18 × 47,156.68
  4. Step 4: Simplify right side
    146,990.68x = 10,399,329,658.56
  5. Step 5: Solve for x
    x = 10,399,329,658.56/146,990.68
  6. Step 6: Final answer
    x = 70,748.22

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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.