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Finding the Fourth Proportional to 243,032.22, 364,559.28 and 74,540.30

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Solution

The fourth proportional to 243,032.22, 364,559.28 and 74,540.30 is: 111,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,032.22 : 364,559.28 = 74,540.30 : x
  2. Step 2: Convert to fraction form
    243,032.22/364,559.28 = 74,540.30/x
  3. Step 3: Cross multiply
    243,032.22x = 364,559.28 × 74,540.30
  4. Step 4: Simplify right side
    243,032.22x = 27,174,358,098.98
  5. Step 5: Solve for x
    x = 27,174,358,098.98/243,032.22
  6. Step 6: Final answer
    x = 111,813.81

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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.