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Finding the Fourth Proportional to 59,669.78, 89,505.88 and 47,768.30

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Solution

The fourth proportional to 59,669.78, 89,505.88 and 47,768.30 is: 71,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,669.78 : 89,505.88 = 47,768.30 : x
  2. Step 2: Convert to fraction form
    59,669.78/89,505.88 = 47,768.30/x
  3. Step 3: Cross multiply
    59,669.78x = 89,505.88 × 47,768.30
  4. Step 4: Simplify right side
    59,669.78x = 4,275,543,727.60
  5. Step 5: Solve for x
    x = 4,275,543,727.60/59,669.78
  6. Step 6: Final answer
    x = 71,653.42

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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.