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Finding the Fourth Proportional to 72,526.44, 108,822.29 and 39,207.49

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Solution

The fourth proportional to 72,526.44, 108,822.29 and 39,207.49 is: 58,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,526.44 : 108,822.29 = 39,207.49 : x
  2. Step 2: Convert to fraction form
    72,526.44/108,822.29 = 39,207.49/x
  3. Step 3: Cross multiply
    72,526.44x = 108,822.29 × 39,207.49
  4. Step 4: Simplify right side
    72,526.44x = 4,266,648,846.95
  5. Step 5: Solve for x
    x = 4,266,648,846.95/72,526.44
  6. Step 6: Final answer
    x = 58,828.87

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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.