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Finding the Fourth Proportional to 65,485.69, 98,240.38 and 43,317.41

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Solution

The fourth proportional to 65,485.69, 98,240.38 and 43,317.41 is: 64,983.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,485.69 : 98,240.38 = 43,317.41 : x
  2. Step 2: Convert to fraction form
    65,485.69/98,240.38 = 43,317.41/x
  3. Step 3: Cross multiply
    65,485.69x = 98,240.38 × 43,317.41
  4. Step 4: Simplify right side
    65,485.69x = 4,255,518,219.52
  5. Step 5: Solve for x
    x = 4,255,518,219.52/65,485.69
  6. Step 6: Final answer
    x = 64,983.94

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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.