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Finding the Fourth Proportional to 84,509.52, 116,613.72 and 48,692.40

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Solution

The fourth proportional to 84,509.52, 116,613.72 and 48,692.40 is: 67,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,509.52 : 116,613.72 = 48,692.40 : x
  2. Step 2: Convert to fraction form
    84,509.52/116,613.72 = 48,692.40/x
  3. Step 3: Cross multiply
    84,509.52x = 116,613.72 × 48,692.40
  4. Step 4: Simplify right side
    84,509.52x = 5,678,201,899.73
  5. Step 5: Solve for x
    x = 5,678,201,899.73/84,509.52
  6. Step 6: Final answer
    x = 67,190.09

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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.