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Finding the Fourth Proportional to 70,994, 106,532.04 and 39,408.32

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Solution

The fourth proportional to 70,994, 106,532.04 and 39,408.32 is: 59,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,994 : 106,532.04 = 39,408.32 : x
  2. Step 2: Convert to fraction form
    70,994/106,532.04 = 39,408.32/x
  3. Step 3: Cross multiply
    70,994x = 106,532.04 × 39,408.32
  4. Step 4: Simplify right side
    70,994x = 4,198,248,722.57
  5. Step 5: Solve for x
    x = 4,198,248,722.57/70,994
  6. Step 6: Final answer
    x = 59,135.26

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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.