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Finding the Fourth Proportional to 63,010.64, 86,835.11 and 45,074.54

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Solution

The fourth proportional to 63,010.64, 86,835.11 and 45,074.54 is: 62,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,010.64 : 86,835.11 = 45,074.54 : x
  2. Step 2: Convert to fraction form
    63,010.64/86,835.11 = 45,074.54/x
  3. Step 3: Cross multiply
    63,010.64x = 86,835.11 × 45,074.54
  4. Step 4: Simplify right side
    63,010.64x = 3,914,052,630.81
  5. Step 5: Solve for x
    x = 3,914,052,630.81/63,010.64
  6. Step 6: Final answer
    x = 62,117.33

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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.