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Finding the Fourth Proportional to 62,647.84, 93,747.28 and 54,243.34

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Solution

The fourth proportional to 62,647.84, 93,747.28 and 54,243.34 is: 81,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,647.84 : 93,747.28 = 54,243.34 : x
  2. Step 2: Convert to fraction form
    62,647.84/93,747.28 = 54,243.34/x
  3. Step 3: Cross multiply
    62,647.84x = 93,747.28 × 54,243.34
  4. Step 4: Simplify right side
    62,647.84x = 5,085,164,954.17
  5. Step 5: Solve for x
    x = 5,085,164,954.17/62,647.84
  6. Step 6: Final answer
    x = 81,170.64

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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.