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Finding the Fourth Proportional to 63,297.68, 87,260.60 and 43,128.68

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Solution

The fourth proportional to 63,297.68, 87,260.60 and 43,128.68 is: 59,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,297.68 : 87,260.60 = 43,128.68 : x
  2. Step 2: Convert to fraction form
    63,297.68/87,260.60 = 43,128.68/x
  3. Step 3: Cross multiply
    63,297.68x = 87,260.60 × 43,128.68
  4. Step 4: Simplify right side
    63,297.68x = 3,763,433,842.06
  5. Step 5: Solve for x
    x = 3,763,433,842.06/63,297.68
  6. Step 6: Final answer
    x = 59,456.11

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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.