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Finding the Fourth Proportional to 115,951.40, 173,667.90 and 89,570.60

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Solution

The fourth proportional to 115,951.40, 173,667.90 and 89,570.60 is: 134,155.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,951.40 : 173,667.90 = 89,570.60 : x
  2. Step 2: Convert to fraction form
    115,951.40/173,667.90 = 89,570.60/x
  3. Step 3: Cross multiply
    115,951.40x = 173,667.90 × 89,570.60
  4. Step 4: Simplify right side
    115,951.40x = 15,555,538,003.74
  5. Step 5: Solve for x
    x = 15,555,538,003.74/115,951.40
  6. Step 6: Final answer
    x = 134,155.67

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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.