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Finding the Fourth Proportional to 133,084.70, 199,627.05 and 91,094.30

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Solution

The fourth proportional to 133,084.70, 199,627.05 and 91,094.30 is: 136,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,084.70 : 199,627.05 = 91,094.30 : x
  2. Step 2: Convert to fraction form
    133,084.70/199,627.05 = 91,094.30/x
  3. Step 3: Cross multiply
    133,084.70x = 199,627.05 × 91,094.30
  4. Step 4: Simplify right side
    133,084.70x = 18,184,886,380.82
  5. Step 5: Solve for x
    x = 18,184,886,380.82/133,084.70
  6. Step 6: Final answer
    x = 136,641.45

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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.