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Finding the Fourth Proportional to 71,952.55, 107,928.83 and 65,828.95

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Solution

The fourth proportional to 71,952.55, 107,928.83 and 65,828.95 is: 98,743.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,952.55 : 107,928.83 = 65,828.95 : x
  2. Step 2: Convert to fraction form
    71,952.55/107,928.83 = 65,828.95/x
  3. Step 3: Cross multiply
    71,952.55x = 107,928.83 × 65,828.95
  4. Step 4: Simplify right side
    71,952.55x = 7,104,841,224.48
  5. Step 5: Solve for x
    x = 7,104,841,224.48/71,952.55
  6. Step 6: Final answer
    x = 98,743.43

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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.