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Finding the Fourth Proportional to 84,807.36, 127,211.49 and 49,722.42

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Solution

The fourth proportional to 84,807.36, 127,211.49 and 49,722.42 is: 74,583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,807.36 : 127,211.49 = 49,722.42 : x
  2. Step 2: Convert to fraction form
    84,807.36/127,211.49 = 49,722.42/x
  3. Step 3: Cross multiply
    84,807.36x = 127,211.49 × 49,722.42
  4. Step 4: Simplify right side
    84,807.36x = 6,325,263,134.61
  5. Step 5: Solve for x
    x = 6,325,263,134.61/84,807.36
  6. Step 6: Final answer
    x = 74,583.89

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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.