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Finding the Fourth Proportional to 71,569.26, 98,774.64 and 43,274.88

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Solution

The fourth proportional to 71,569.26, 98,774.64 and 43,274.88 is: 59,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.26 : 98,774.64 = 43,274.88 : x
  2. Step 2: Convert to fraction form
    71,569.26/98,774.64 = 43,274.88/x
  3. Step 3: Cross multiply
    71,569.26x = 98,774.64 × 43,274.88
  4. Step 4: Simplify right side
    71,569.26x = 4,274,460,693.04
  5. Step 5: Solve for x
    x = 4,274,460,693.04/71,569.26
  6. Step 6: Final answer
    x = 59,724.81

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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.