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Finding the Fourth Proportional to 84,558.98, 116,692.25 and 51,018.50

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Solution

The fourth proportional to 84,558.98, 116,692.25 and 51,018.50 is: 70,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,558.98 : 116,692.25 = 51,018.50 : x
  2. Step 2: Convert to fraction form
    84,558.98/116,692.25 = 51,018.50/x
  3. Step 3: Cross multiply
    84,558.98x = 116,692.25 × 51,018.50
  4. Step 4: Simplify right side
    84,558.98x = 5,953,463,556.63
  5. Step 5: Solve for x
    x = 5,953,463,556.63/84,558.98
  6. Step 6: Final answer
    x = 70,406.05

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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.