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Finding the Fourth Proportional to 108,206.39, 163,048.18 and 88,917.05

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Solution

The fourth proportional to 108,206.39, 163,048.18 and 88,917.05 is: 133,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,206.39 : 163,048.18 = 88,917.05 : x
  2. Step 2: Convert to fraction form
    108,206.39/163,048.18 = 88,917.05/x
  3. Step 3: Cross multiply
    108,206.39x = 163,048.18 × 88,917.05
  4. Step 4: Simplify right side
    108,206.39x = 14,497,762,135.94
  5. Step 5: Solve for x
    x = 14,497,762,135.94/108,206.39
  6. Step 6: Final answer
    x = 133,982.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.