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Finding the Fourth Proportional to 66,943.84, 100,285.60 and 37,271.84

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Solution

The fourth proportional to 66,943.84, 100,285.60 and 37,271.84 is: 55,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.84 : 100,285.60 = 37,271.84 : x
  2. Step 2: Convert to fraction form
    66,943.84/100,285.60 = 37,271.84/x
  3. Step 3: Cross multiply
    66,943.84x = 100,285.60 × 37,271.84
  4. Step 4: Simplify right side
    66,943.84x = 3,737,828,837.50
  5. Step 5: Solve for x
    x = 3,737,828,837.50/66,943.84
  6. Step 6: Final answer
    x = 55,835.29

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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.