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Finding the Fourth Proportional to 74,856.78, 103,299.74 and 44,626.50

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Solution

The fourth proportional to 74,856.78, 103,299.74 and 44,626.50 is: 61,583.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,856.78 : 103,299.74 = 44,626.50 : x
  2. Step 2: Convert to fraction form
    74,856.78/103,299.74 = 44,626.50/x
  3. Step 3: Cross multiply
    74,856.78x = 103,299.74 × 44,626.50
  4. Step 4: Simplify right side
    74,856.78x = 4,609,905,847.11
  5. Step 5: Solve for x
    x = 4,609,905,847.11/74,856.78
  6. Step 6: Final answer
    x = 61,583.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.