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Finding the Fourth Proportional to 111,877.60, 167,816.40 and 102,546.40

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Solution

The fourth proportional to 111,877.60, 167,816.40 and 102,546.40 is: 153,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,877.60 : 167,816.40 = 102,546.40 : x
  2. Step 2: Convert to fraction form
    111,877.60/167,816.40 = 102,546.40/x
  3. Step 3: Cross multiply
    111,877.60x = 167,816.40 × 102,546.40
  4. Step 4: Simplify right side
    111,877.60x = 17,208,967,680.96
  5. Step 5: Solve for x
    x = 17,208,967,680.96/111,877.60
  6. Step 6: Final answer
    x = 153,819.60

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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.