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Finding the Fourth Proportional to 74,865.60, 103,323.36 and 43,035.84

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Solution

The fourth proportional to 74,865.60, 103,323.36 and 43,035.84 is: 59,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,865.60 : 103,323.36 = 43,035.84 : x
  2. Step 2: Convert to fraction form
    74,865.60/103,323.36 = 43,035.84/x
  3. Step 3: Cross multiply
    74,865.60x = 103,323.36 × 43,035.84
  4. Step 4: Simplify right side
    74,865.60x = 4,446,607,589.22
  5. Step 5: Solve for x
    x = 4,446,607,589.22/74,865.60
  6. Step 6: Final answer
    x = 59,394.54

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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.