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Finding the Fourth Proportional to 183,986.40, 275,639.40 and 104,865.60

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Solution

The fourth proportional to 183,986.40, 275,639.40 and 104,865.60 is: 157,104.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,986.40 : 275,639.40 = 104,865.60 : x
  2. Step 2: Convert to fraction form
    183,986.40/275,639.40 = 104,865.60/x
  3. Step 3: Cross multiply
    183,986.40x = 275,639.40 × 104,865.60
  4. Step 4: Simplify right side
    183,986.40x = 28,905,091,064.64
  5. Step 5: Solve for x
    x = 28,905,091,064.64/183,986.40
  6. Step 6: Final answer
    x = 157,104.50

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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.