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Finding the Fourth Proportional to 65,045.90, 89,730.46 and 43,536.54

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Solution

The fourth proportional to 65,045.90, 89,730.46 and 43,536.54 is: 60,058.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,045.90 : 89,730.46 = 43,536.54 : x
  2. Step 2: Convert to fraction form
    65,045.90/89,730.46 = 43,536.54/x
  3. Step 3: Cross multiply
    65,045.90x = 89,730.46 × 43,536.54
  4. Step 4: Simplify right side
    65,045.90x = 3,906,553,907.03
  5. Step 5: Solve for x
    x = 3,906,553,907.03/65,045.90
  6. Step 6: Final answer
    x = 60,058.42

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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.