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Finding the Fourth Proportional to 116,443.80, 174,665.70 and 82,618.20

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Solution

The fourth proportional to 116,443.80, 174,665.70 and 82,618.20 is: 123,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,443.80 : 174,665.70 = 82,618.20 : x
  2. Step 2: Convert to fraction form
    116,443.80/174,665.70 = 82,618.20/x
  3. Step 3: Cross multiply
    116,443.80x = 174,665.70 × 82,618.20
  4. Step 4: Simplify right side
    116,443.80x = 14,430,565,735.74
  5. Step 5: Solve for x
    x = 14,430,565,735.74/116,443.80
  6. Step 6: Final answer
    x = 123,927.30

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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.