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Finding the Fourth Proportional to 100,271.64, 150,407.46 and 47,652.42

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Solution

The fourth proportional to 100,271.64, 150,407.46 and 47,652.42 is: 71,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,271.64 : 150,407.46 = 47,652.42 : x
  2. Step 2: Convert to fraction form
    100,271.64/150,407.46 = 47,652.42/x
  3. Step 3: Cross multiply
    100,271.64x = 150,407.46 × 47,652.42
  4. Step 4: Simplify right side
    100,271.64x = 7,167,279,455.05
  5. Step 5: Solve for x
    x = 7,167,279,455.05/100,271.64
  6. Step 6: Final answer
    x = 71,478.63

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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.