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Finding the Fourth Proportional to 55,559.56, 83,261.56 and 39,903.88

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Solution

The fourth proportional to 55,559.56, 83,261.56 and 39,903.88 is: 59,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,559.56 : 83,261.56 = 39,903.88 : x
  2. Step 2: Convert to fraction form
    55,559.56/83,261.56 = 39,903.88/x
  3. Step 3: Cross multiply
    55,559.56x = 83,261.56 × 39,903.88
  4. Step 4: Simplify right side
    55,559.56x = 3,322,459,298.85
  5. Step 5: Solve for x
    x = 3,322,459,298.85/55,559.56
  6. Step 6: Final answer
    x = 59,799.96

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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.