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Finding the Fourth Proportional to 116,636.80, 174,955.20 and 80,867.20

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Solution

The fourth proportional to 116,636.80, 174,955.20 and 80,867.20 is: 121,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,636.80 : 174,955.20 = 80,867.20 : x
  2. Step 2: Convert to fraction form
    116,636.80/174,955.20 = 80,867.20/x
  3. Step 3: Cross multiply
    116,636.80x = 174,955.20 × 80,867.20
  4. Step 4: Simplify right side
    116,636.80x = 14,148,137,149.44
  5. Step 5: Solve for x
    x = 14,148,137,149.44/116,636.80
  6. Step 6: Final answer
    x = 121,300.80

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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.