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Finding the Fourth Proportional to 111,630.40, 167,445.60 and 94,717.60

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Solution

The fourth proportional to 111,630.40, 167,445.60 and 94,717.60 is: 142,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,630.40 : 167,445.60 = 94,717.60 : x
  2. Step 2: Convert to fraction form
    111,630.40/167,445.60 = 94,717.60/x
  3. Step 3: Cross multiply
    111,630.40x = 167,445.60 × 94,717.60
  4. Step 4: Simplify right side
    111,630.40x = 15,860,045,362.56
  5. Step 5: Solve for x
    x = 15,860,045,362.56/111,630.40
  6. Step 6: Final answer
    x = 142,076.40

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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.