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Finding the Fourth Proportional to 88,642.94, 132,965.55 and 29,478.60

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Solution

The fourth proportional to 88,642.94, 132,965.55 and 29,478.60 is: 44,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,642.94 : 132,965.55 = 29,478.60 : x
  2. Step 2: Convert to fraction form
    88,642.94/132,965.55 = 29,478.60/x
  3. Step 3: Cross multiply
    88,642.94x = 132,965.55 × 29,478.60
  4. Step 4: Simplify right side
    88,642.94x = 3,919,638,262.23
  5. Step 5: Solve for x
    x = 3,919,638,262.23/88,642.94
  6. Step 6: Final answer
    x = 44,218.28

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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.