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Finding the Fourth Proportional to 88,410.45, 132,647.65 and 54,636.94

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Solution

The fourth proportional to 88,410.45, 132,647.65 and 54,636.94 is: 81,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,410.45 : 132,647.65 = 54,636.94 : x
  2. Step 2: Convert to fraction form
    88,410.45/132,647.65 = 54,636.94/x
  3. Step 3: Cross multiply
    88,410.45x = 132,647.65 × 54,636.94
  4. Step 4: Simplify right side
    88,410.45x = 7,247,461,694.19
  5. Step 5: Solve for x
    x = 7,247,461,694.19/88,410.45
  6. Step 6: Final answer
    x = 81,975.17

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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.