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Finding the Fourth Proportional to 71,941.48, 98,751.05 and 63,805.84

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Solution

The fourth proportional to 71,941.48, 98,751.05 and 63,805.84 is: 87,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,941.48 : 98,751.05 = 63,805.84 : x
  2. Step 2: Convert to fraction form
    71,941.48/98,751.05 = 63,805.84/x
  3. Step 3: Cross multiply
    71,941.48x = 98,751.05 × 63,805.84
  4. Step 4: Simplify right side
    71,941.48x = 6,300,893,696.13
  5. Step 5: Solve for x
    x = 6,300,893,696.13/71,941.48
  6. Step 6: Final answer
    x = 87,583.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.