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Finding the Fourth Proportional to 43,451.60, 65,076.23 and 42,254.53

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Solution

The fourth proportional to 43,451.60, 65,076.23 and 42,254.53 is: 63,283.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,451.60 : 65,076.23 = 42,254.53 : x
  2. Step 2: Convert to fraction form
    43,451.60/65,076.23 = 42,254.53/x
  3. Step 3: Cross multiply
    43,451.60x = 65,076.23 × 42,254.53
  4. Step 4: Simplify right side
    43,451.60x = 2,749,765,455.77
  5. Step 5: Solve for x
    x = 2,749,765,455.77/43,451.60
  6. Step 6: Final answer
    x = 63,283.42

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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.