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Finding the Fourth Proportional to 108,912.10, 150,302.08 and 61,166.48

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Solution

The fourth proportional to 108,912.10, 150,302.08 and 61,166.48 is: 84,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,912.10 : 150,302.08 = 61,166.48 : x
  2. Step 2: Convert to fraction form
    108,912.10/150,302.08 = 61,166.48/x
  3. Step 3: Cross multiply
    108,912.10x = 150,302.08 × 61,166.48
  4. Step 4: Simplify right side
    108,912.10x = 9,193,449,170.28
  5. Step 5: Solve for x
    x = 9,193,449,170.28/108,912.10
  6. Step 6: Final answer
    x = 84,411.64

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1.5x scale

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.