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Finding the Fourth Proportional to 88,148.80, 132,352.80 and 61,969.60

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Solution

The fourth proportional to 88,148.80, 132,352.80 and 61,969.60 is: 93,045.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,148.80 : 132,352.80 = 61,969.60 : x
  2. Step 2: Convert to fraction form
    88,148.80/132,352.80 = 61,969.60/x
  3. Step 3: Cross multiply
    88,148.80x = 132,352.80 × 61,969.60
  4. Step 4: Simplify right side
    88,148.80x = 8,201,850,074.88
  5. Step 5: Solve for x
    x = 8,201,850,074.88/88,148.80
  6. Step 6: Final answer
    x = 93,045.51

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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.