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Finding the Fourth Proportional to 70,390.05, 105,563.01 and 22,994.34

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Solution

The fourth proportional to 70,390.05, 105,563.01 and 22,994.34 is: 34,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,390.05 : 105,563.01 = 22,994.34 : x
  2. Step 2: Convert to fraction form
    70,390.05/105,563.01 = 22,994.34/x
  3. Step 3: Cross multiply
    70,390.05x = 105,563.01 × 22,994.34
  4. Step 4: Simplify right side
    70,390.05x = 2,427,351,100.58
  5. Step 5: Solve for x
    x = 2,427,351,100.58/70,390.05
  6. Step 6: Final answer
    x = 34,484.30

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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.