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Finding the Fourth Proportional to 115,466.20, 173,256.90 and 65,584.60

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Solution

The fourth proportional to 115,466.20, 173,256.90 and 65,584.60 is: 98,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,466.20 : 173,256.90 = 65,584.60 : x
  2. Step 2: Convert to fraction form
    115,466.20/173,256.90 = 65,584.60/x
  3. Step 3: Cross multiply
    115,466.20x = 173,256.90 × 65,584.60
  4. Step 4: Simplify right side
    115,466.20x = 11,362,984,483.74
  5. Step 5: Solve for x
    x = 11,362,984,483.74/115,466.20
  6. Step 6: Final answer
    x = 98,409.62

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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.