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Finding the Fourth Proportional to 74,374.50, 102,626.48 and 43,748.98

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Solution

The fourth proportional to 74,374.50, 102,626.48 and 43,748.98 is: 60,367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,374.50 : 102,626.48 = 43,748.98 : x
  2. Step 2: Convert to fraction form
    74,374.50/102,626.48 = 43,748.98/x
  3. Step 3: Cross multiply
    74,374.50x = 102,626.48 × 43,748.98
  4. Step 4: Simplify right side
    74,374.50x = 4,489,803,820.99
  5. Step 5: Solve for x
    x = 4,489,803,820.99/74,374.50
  6. Step 6: Final answer
    x = 60,367.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.