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Finding the Fourth Proportional to 122,907.97, 184,361.96 and 70,280.56

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Solution

The fourth proportional to 122,907.97, 184,361.96 and 70,280.56 is: 105,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,907.97 : 184,361.96 = 70,280.56 : x
  2. Step 2: Convert to fraction form
    122,907.97/184,361.96 = 70,280.56/x
  3. Step 3: Cross multiply
    122,907.97x = 184,361.96 × 70,280.56
  4. Step 4: Simplify right side
    122,907.97x = 12,957,061,791.50
  5. Step 5: Solve for x
    x = 12,957,061,791.50/122,907.97
  6. Step 6: Final answer
    x = 105,420.84

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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.