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Finding the Fourth Proportional to 117,307.20, 175,845.60 and 104,865.60

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Solution

The fourth proportional to 117,307.20, 175,845.60 and 104,865.60 is: 157,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,307.20 : 175,845.60 = 104,865.60 : x
  2. Step 2: Convert to fraction form
    117,307.20/175,845.60 = 104,865.60/x
  3. Step 3: Cross multiply
    117,307.20x = 175,845.60 × 104,865.60
  4. Step 4: Simplify right side
    117,307.20x = 18,440,154,351.36
  5. Step 5: Solve for x
    x = 18,440,154,351.36/117,307.20
  6. Step 6: Final answer
    x = 157,195.42

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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.