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Finding the Fourth Proportional to 74,064.67, 111,050.29 and 40,808.08

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Solution

The fourth proportional to 74,064.67, 111,050.29 and 40,808.08 is: 61,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,064.67 : 111,050.29 = 40,808.08 : x
  2. Step 2: Convert to fraction form
    74,064.67/111,050.29 = 40,808.08/x
  3. Step 3: Cross multiply
    74,064.67x = 111,050.29 × 40,808.08
  4. Step 4: Simplify right side
    74,064.67x = 4,531,749,596.03
  5. Step 5: Solve for x
    x = 4,531,749,596.03/74,064.67
  6. Step 6: Final answer
    x = 61,186.39

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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.