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Finding the Fourth Proportional to 70,894.03, 106,356.30 and 35,374.45

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Solution

The fourth proportional to 70,894.03, 106,356.30 and 35,374.45 is: 53,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,894.03 : 106,356.30 = 35,374.45 : x
  2. Step 2: Convert to fraction form
    70,894.03/106,356.30 = 35,374.45/x
  3. Step 3: Cross multiply
    70,894.03x = 106,356.30 × 35,374.45
  4. Step 4: Simplify right side
    70,894.03x = 3,762,295,616.54
  5. Step 5: Solve for x
    x = 3,762,295,616.54/70,894.03
  6. Step 6: Final answer
    x = 53,069.29

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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.