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Finding the Fourth Proportional to 100,573.36, 150,630.40 and 48,019.74

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Solution

The fourth proportional to 100,573.36, 150,630.40 and 48,019.74 is: 71,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,573.36 : 150,630.40 = 48,019.74 : x
  2. Step 2: Convert to fraction form
    100,573.36/150,630.40 = 48,019.74/x
  3. Step 3: Cross multiply
    100,573.36x = 150,630.40 × 48,019.74
  4. Step 4: Simplify right side
    100,573.36x = 7,233,232,644.10
  5. Step 5: Solve for x
    x = 7,233,232,644.10/100,573.36
  6. Step 6: Final answer
    x = 71,919.97

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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.