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Finding the Fourth Proportional to 122,887.89, 184,331.74 and 70,260.48

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Solution

The fourth proportional to 122,887.89, 184,331.74 and 70,260.48 is: 105,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,887.89 : 184,331.74 = 70,260.48 : x
  2. Step 2: Convert to fraction form
    122,887.89/184,331.74 = 70,260.48/x
  3. Step 3: Cross multiply
    122,887.89x = 184,331.74 × 70,260.48
  4. Step 4: Simplify right side
    122,887.89x = 12,951,236,531.64
  5. Step 5: Solve for x
    x = 12,951,236,531.64/122,887.89
  6. Step 6: Final answer
    x = 105,390.67

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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.