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Finding the Fourth Proportional to 81,652.25, 112,680.52 and 45,353.93

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Solution

The fourth proportional to 81,652.25, 112,680.52 and 45,353.93 is: 62,588.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,652.25 : 112,680.52 = 45,353.93 : x
  2. Step 2: Convert to fraction form
    81,652.25/112,680.52 = 45,353.93/x
  3. Step 3: Cross multiply
    81,652.25x = 112,680.52 × 45,353.93
  4. Step 4: Simplify right side
    81,652.25x = 5,110,503,739.66
  5. Step 5: Solve for x
    x = 5,110,503,739.66/81,652.25
  6. Step 6: Final answer
    x = 62,588.64

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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.