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Finding the Fourth Proportional to 122,901.44, 184,352.74 and 42,939.07

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Solution

The fourth proportional to 122,901.44, 184,352.74 and 42,939.07 is: 64,408.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,901.44 : 184,352.74 = 42,939.07 : x
  2. Step 2: Convert to fraction form
    122,901.44/184,352.74 = 42,939.07/x
  3. Step 3: Cross multiply
    122,901.44x = 184,352.74 × 42,939.07
  4. Step 4: Simplify right side
    122,901.44x = 7,915,934,639.32
  5. Step 5: Solve for x
    x = 7,915,934,639.32/122,901.44
  6. Step 6: Final answer
    x = 64,408.81

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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.