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Finding the Fourth Proportional to 188,606.39, 282,968.01 and 65,378.73

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Solution

The fourth proportional to 188,606.39, 282,968.01 and 65,378.73 is: 98,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,606.39 : 282,968.01 = 65,378.73 : x
  2. Step 2: Convert to fraction form
    188,606.39/282,968.01 = 65,378.73/x
  3. Step 3: Cross multiply
    188,606.39x = 282,968.01 × 65,378.73
  4. Step 4: Simplify right side
    188,606.39x = 18,500,089,124.43
  5. Step 5: Solve for x
    x = 18,500,089,124.43/188,606.39
  6. Step 6: Final answer
    x = 98,088.35

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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.