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Finding the Fourth Proportional to 100,638.22, 150,899.02 and 41,406.98

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Solution

The fourth proportional to 100,638.22, 150,899.02 and 41,406.98 is: 62,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,638.22 : 150,899.02 = 41,406.98 : x
  2. Step 2: Convert to fraction form
    100,638.22/150,899.02 = 41,406.98/x
  3. Step 3: Cross multiply
    100,638.22x = 150,899.02 × 41,406.98
  4. Step 4: Simplify right side
    100,638.22x = 6,248,272,703.16
  5. Step 5: Solve for x
    x = 6,248,272,703.16/100,638.22
  6. Step 6: Final answer
    x = 62,086.48

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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.