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Finding the Fourth Proportional to 108,313.80, 162,276.30 and 92,761.80

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Solution

The fourth proportional to 108,313.80, 162,276.30 and 92,761.80 is: 138,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,313.80 : 162,276.30 = 92,761.80 : x
  2. Step 2: Convert to fraction form
    108,313.80/162,276.30 = 92,761.80/x
  3. Step 3: Cross multiply
    108,313.80x = 162,276.30 × 92,761.80
  4. Step 4: Simplify right side
    108,313.80x = 15,053,041,685.34
  5. Step 5: Solve for x
    x = 15,053,041,685.34/108,313.80
  6. Step 6: Final answer
    x = 138,976.21

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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.