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Finding the Fourth Proportional to 74,516.93, 111,775.40 and 21,926.43

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Solution

The fourth proportional to 74,516.93, 111,775.40 and 21,926.43 is: 32,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,516.93 : 111,775.40 = 21,926.43 : x
  2. Step 2: Convert to fraction form
    74,516.93/111,775.40 = 21,926.43/x
  3. Step 3: Cross multiply
    74,516.93x = 111,775.40 × 21,926.43
  4. Step 4: Simplify right side
    74,516.93x = 2,450,835,374.19
  5. Step 5: Solve for x
    x = 2,450,835,374.19/74,516.93
  6. Step 6: Final answer
    x = 32,889.65

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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.