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Finding the Fourth Proportional to 70,907.58, 106,261.04 and 39,331.52

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Solution

The fourth proportional to 70,907.58, 106,261.04 and 39,331.52 is: 58,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,907.58 : 106,261.04 = 39,331.52 : x
  2. Step 2: Convert to fraction form
    70,907.58/106,261.04 = 39,331.52/x
  3. Step 3: Cross multiply
    70,907.58x = 106,261.04 × 39,331.52
  4. Step 4: Simplify right side
    70,907.58x = 4,179,408,219.98
  5. Step 5: Solve for x
    x = 4,179,408,219.98/70,907.58
  6. Step 6: Final answer
    x = 58,941.63

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1.5x scale

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.