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Finding the Fourth Proportional to 74,379.61, 111,573.01 and 24,458.60

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Solution

The fourth proportional to 74,379.61, 111,573.01 and 24,458.60 is: 36,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,379.61 : 111,573.01 = 24,458.60 : x
  2. Step 2: Convert to fraction form
    74,379.61/111,573.01 = 24,458.60/x
  3. Step 3: Cross multiply
    74,379.61x = 111,573.01 × 24,458.60
  4. Step 4: Simplify right side
    74,379.61x = 2,728,919,779.03
  5. Step 5: Solve for x
    x = 2,728,919,779.03/74,379.61
  6. Step 6: Final answer
    x = 36,689.08

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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.