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Finding the Fourth Proportional to 99,571.96, 149,354.94 and 40,406.20

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Solution

The fourth proportional to 99,571.96, 149,354.94 and 40,406.20 is: 60,608.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,571.96 : 149,354.94 = 40,406.20 : x
  2. Step 2: Convert to fraction form
    99,571.96/149,354.94 = 40,406.20/x
  3. Step 3: Cross multiply
    99,571.96x = 149,354.94 × 40,406.20
  4. Step 4: Simplify right side
    99,571.96x = 6,034,865,576.63
  5. Step 5: Solve for x
    x = 6,034,865,576.63/99,571.96
  6. Step 6: Final answer
    x = 60,608.08

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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.