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Finding the Fourth Proportional to 65,813.40, 98,525.70 and 43,651.80

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Solution

The fourth proportional to 65,813.40, 98,525.70 and 43,651.80 is: 65,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,813.40 : 98,525.70 = 43,651.80 : x
  2. Step 2: Convert to fraction form
    65,813.40/98,525.70 = 43,651.80/x
  3. Step 3: Cross multiply
    65,813.40x = 98,525.70 × 43,651.80
  4. Step 4: Simplify right side
    65,813.40x = 4,300,824,151.26
  5. Step 5: Solve for x
    x = 4,300,824,151.26/65,813.40
  6. Step 6: Final answer
    x = 65,348.76

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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.