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Finding the Fourth Proportional to 55,480.32, 83,220.48 and 29,197.44

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Solution

The fourth proportional to 55,480.32, 83,220.48 and 29,197.44 is: 43,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,480.32 : 83,220.48 = 29,197.44 : x
  2. Step 2: Convert to fraction form
    55,480.32/83,220.48 = 29,197.44/x
  3. Step 3: Cross multiply
    55,480.32x = 83,220.48 × 29,197.44
  4. Step 4: Simplify right side
    55,480.32x = 2,429,824,971.57
  5. Step 5: Solve for x
    x = 2,429,824,971.57/55,480.32
  6. Step 6: Final answer
    x = 43,796.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.