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Finding the Fourth Proportional to 78,632.81, 108,523.26 and 44,652.43

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Solution

The fourth proportional to 78,632.81, 108,523.26 and 44,652.43 is: 61,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,632.81 : 108,523.26 = 44,652.43 : x
  2. Step 2: Convert to fraction form
    78,632.81/108,523.26 = 44,652.43/x
  3. Step 3: Cross multiply
    78,632.81x = 108,523.26 × 44,652.43
  4. Step 4: Simplify right side
    78,632.81x = 4,845,827,406.18
  5. Step 5: Solve for x
    x = 4,845,827,406.18/78,632.81
  6. Step 6: Final answer
    x = 61,626.02

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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.