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Finding the Fourth Proportional to 108,907.80, 163,361.70 and 82,296.60

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Solution

The fourth proportional to 108,907.80, 163,361.70 and 82,296.60 is: 123,444.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,907.80 : 163,361.70 = 82,296.60 : x
  2. Step 2: Convert to fraction form
    108,907.80/163,361.70 = 82,296.60/x
  3. Step 3: Cross multiply
    108,907.80x = 163,361.70 × 82,296.60
  4. Step 4: Simplify right side
    108,907.80x = 13,444,112,480.22
  5. Step 5: Solve for x
    x = 13,444,112,480.22/108,907.80
  6. Step 6: Final answer
    x = 123,444.90

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1.5x scale

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.