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Finding the Fourth Proportional to 61,206.80, 91,903.08 and 58,200.08

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Solution

The fourth proportional to 61,206.80, 91,903.08 and 58,200.08 is: 87,388.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,206.80 : 91,903.08 = 58,200.08 : x
  2. Step 2: Convert to fraction form
    61,206.80/91,903.08 = 58,200.08/x
  3. Step 3: Cross multiply
    61,206.80x = 91,903.08 × 58,200.08
  4. Step 4: Simplify right side
    61,206.80x = 5,348,766,608.25
  5. Step 5: Solve for x
    x = 5,348,766,608.25/61,206.80
  6. Step 6: Final answer
    x = 87,388.44

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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.