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Finding the Fourth Proportional to 71,566.62, 98,599.47 and 55,378.26

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Solution

The fourth proportional to 71,566.62, 98,599.47 and 55,378.26 is: 76,296.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,566.62 : 98,599.47 = 55,378.26 : x
  2. Step 2: Convert to fraction form
    71,566.62/98,599.47 = 55,378.26/x
  3. Step 3: Cross multiply
    71,566.62x = 98,599.47 × 55,378.26
  4. Step 4: Simplify right side
    71,566.62x = 5,460,267,085.52
  5. Step 5: Solve for x
    x = 5,460,267,085.52/71,566.62
  6. Step 6: Final answer
    x = 76,296.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.