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Finding the Fourth Proportional to 74,605.64, 111,808.64 and 36,596.80

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Solution

The fourth proportional to 74,605.64, 111,808.64 and 36,596.80 is: 54,846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,605.64 : 111,808.64 = 36,596.80 : x
  2. Step 2: Convert to fraction form
    74,605.64/111,808.64 = 36,596.80/x
  3. Step 3: Cross multiply
    74,605.64x = 111,808.64 × 36,596.80
  4. Step 4: Simplify right side
    74,605.64x = 4,091,838,436.35
  5. Step 5: Solve for x
    x = 4,091,838,436.35/74,605.64
  6. Step 6: Final answer
    x = 54,846.23

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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.