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Finding the Fourth Proportional to 108,608.70, 162,913.05 and 55,464.60

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Solution

The fourth proportional to 108,608.70, 162,913.05 and 55,464.60 is: 83,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,608.70 : 162,913.05 = 55,464.60 : x
  2. Step 2: Convert to fraction form
    108,608.70/162,913.05 = 55,464.60/x
  3. Step 3: Cross multiply
    108,608.70x = 162,913.05 × 55,464.60
  4. Step 4: Simplify right side
    108,608.70x = 9,035,907,153.03
  5. Step 5: Solve for x
    x = 9,035,907,153.03/108,608.70
  6. Step 6: Final answer
    x = 83,196.90

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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.