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Finding the Fourth Proportional to 71,588.89, 107,352.01 and 29,440.81

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Solution

The fourth proportional to 71,588.89, 107,352.01 and 29,440.81 is: 44,148.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,588.89 : 107,352.01 = 29,440.81 : x
  2. Step 2: Convert to fraction form
    71,588.89/107,352.01 = 29,440.81/x
  3. Step 3: Cross multiply
    71,588.89x = 107,352.01 × 29,440.81
  4. Step 4: Simplify right side
    71,588.89x = 3,160,529,445.56
  5. Step 5: Solve for x
    x = 3,160,529,445.56/71,588.89
  6. Step 6: Final answer
    x = 44,148.33

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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.