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Finding the Fourth Proportional to 63,242.78, 87,203.93 and 43,111.44

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Solution

The fourth proportional to 63,242.78, 87,203.93 and 43,111.44 is: 59,445.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,242.78 : 87,203.93 = 43,111.44 : x
  2. Step 2: Convert to fraction form
    63,242.78/87,203.93 = 43,111.44/x
  3. Step 3: Cross multiply
    63,242.78x = 87,203.93 × 43,111.44
  4. Step 4: Simplify right side
    63,242.78x = 3,759,486,780.40
  5. Step 5: Solve for x
    x = 3,759,486,780.40/63,242.78
  6. Step 6: Final answer
    x = 59,445.32

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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.