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Finding the Fourth Proportional to 147,173.44, 220,739.40 and 47,320.94

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Solution

The fourth proportional to 147,173.44, 220,739.40 and 47,320.94 is: 70,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,173.44 : 220,739.40 = 47,320.94 : x
  2. Step 2: Convert to fraction form
    147,173.44/220,739.40 = 47,320.94/x
  3. Step 3: Cross multiply
    147,173.44x = 220,739.40 × 47,320.94
  4. Step 4: Simplify right side
    147,173.44x = 10,445,595,903.04
  5. Step 5: Solve for x
    x = 10,445,595,903.04/147,173.44
  6. Step 6: Final answer
    x = 70,974.73

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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.