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Finding the Fourth Proportional to 116,635.80, 174,953.70 and 80,866.20

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Solution

The fourth proportional to 116,635.80, 174,953.70 and 80,866.20 is: 121,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,635.80 : 174,953.70 = 80,866.20 : x
  2. Step 2: Convert to fraction form
    116,635.80/174,953.70 = 80,866.20/x
  3. Step 3: Cross multiply
    116,635.80x = 174,953.70 × 80,866.20
  4. Step 4: Simplify right side
    116,635.80x = 14,147,840,894.94
  5. Step 5: Solve for x
    x = 14,147,840,894.94/116,635.80
  6. Step 6: Final answer
    x = 121,299.30

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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.