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Finding the Fourth Proportional to 108,465.63, 150,584.18 and 105,217.94

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Solution

The fourth proportional to 108,465.63, 150,584.18 and 105,217.94 is: 146,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,465.63 : 150,584.18 = 105,217.94 : x
  2. Step 2: Convert to fraction form
    108,465.63/150,584.18 = 105,217.94/x
  3. Step 3: Cross multiply
    108,465.63x = 150,584.18 × 105,217.94
  4. Step 4: Simplify right side
    108,465.63x = 15,844,156,367.49
  5. Step 5: Solve for x
    x = 15,844,156,367.49/108,465.63
  6. Step 6: Final answer
    x = 146,075.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.