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Finding the Fourth Proportional to 108,776.96, 163,091.60 and 55,337.60

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Solution

The fourth proportional to 108,776.96, 163,091.60 and 55,337.60 is: 82,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,776.96 : 163,091.60 = 55,337.60 : x
  2. Step 2: Convert to fraction form
    108,776.96/163,091.60 = 55,337.60/x
  3. Step 3: Cross multiply
    108,776.96x = 163,091.60 × 55,337.60
  4. Step 4: Simplify right side
    108,776.96x = 9,025,097,724.16
  5. Step 5: Solve for x
    x = 9,025,097,724.16/108,776.96
  6. Step 6: Final answer
    x = 82,968.84

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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.