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Finding the Fourth Proportional to 88,290.88, 121,841.31 and 48,004.54

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Solution

The fourth proportional to 88,290.88, 121,841.31 and 48,004.54 is: 66,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,290.88 : 121,841.31 = 48,004.54 : x
  2. Step 2: Convert to fraction form
    88,290.88/121,841.31 = 48,004.54/x
  3. Step 3: Cross multiply
    88,290.88x = 121,841.31 × 48,004.54
  4. Step 4: Simplify right side
    88,290.88x = 5,848,936,039.55
  5. Step 5: Solve for x
    x = 5,848,936,039.55/88,290.88
  6. Step 6: Final answer
    x = 66,246.21

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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.