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Finding the Fourth Proportional to 55,852.56, 76,986.54 and 45,763.20

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Solution

The fourth proportional to 55,852.56, 76,986.54 and 45,763.20 is: 63,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,852.56 : 76,986.54 = 45,763.20 : x
  2. Step 2: Convert to fraction form
    55,852.56/76,986.54 = 45,763.20/x
  3. Step 3: Cross multiply
    55,852.56x = 76,986.54 × 45,763.20
  4. Step 4: Simplify right side
    55,852.56x = 3,523,150,427.33
  5. Step 5: Solve for x
    x = 3,523,150,427.33/55,852.56
  6. Step 6: Final answer
    x = 63,079.48

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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.