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Finding the Fourth Proportional to 74,622.87, 102,977.19 and 44,401.28

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Solution

The fourth proportional to 74,622.87, 102,977.19 and 44,401.28 is: 61,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.87 : 102,977.19 = 44,401.28 : x
  2. Step 2: Convert to fraction form
    74,622.87/102,977.19 = 44,401.28/x
  3. Step 3: Cross multiply
    74,622.87x = 102,977.19 × 44,401.28
  4. Step 4: Simplify right side
    74,622.87x = 4,572,318,531.92
  5. Step 5: Solve for x
    x = 4,572,318,531.92/74,622.87
  6. Step 6: Final answer
    x = 61,272.35

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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.