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Finding the Fourth Proportional to 108,727.70, 163,091.55 and 108,727.70

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Solution

The fourth proportional to 108,727.70, 163,091.55 and 108,727.70 is: 163,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,727.70 : 163,091.55 = 108,727.70 : x
  2. Step 2: Convert to fraction form
    108,727.70/163,091.55 = 108,727.70/x
  3. Step 3: Cross multiply
    108,727.70x = 163,091.55 × 108,727.70
  4. Step 4: Simplify right side
    108,727.70x = 17,732,569,120.94
  5. Step 5: Solve for x
    x = 17,732,569,120.94/108,727.70
  6. Step 6: Final answer
    x = 163,091.55

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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.