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Finding the Fourth Proportional to 55,826.70, 83,610.45 and 54,530.70

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Solution

The fourth proportional to 55,826.70, 83,610.45 and 54,530.70 is: 81,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,826.70 : 83,610.45 = 54,530.70 : x
  2. Step 2: Convert to fraction form
    55,826.70/83,610.45 = 54,530.70/x
  3. Step 3: Cross multiply
    55,826.70x = 83,610.45 × 54,530.70
  4. Step 4: Simplify right side
    55,826.70x = 4,559,336,365.82
  5. Step 5: Solve for x
    x = 4,559,336,365.82/55,826.70
  6. Step 6: Final answer
    x = 81,669.46

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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.