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Finding the Fourth Proportional to 116,115.18, 174,020.48 and 84,201.18

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Solution

The fourth proportional to 116,115.18, 174,020.48 and 84,201.18 is: 126,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,115.18 : 174,020.48 = 84,201.18 : x
  2. Step 2: Convert to fraction form
    116,115.18/174,020.48 = 84,201.18/x
  3. Step 3: Cross multiply
    116,115.18x = 174,020.48 × 84,201.18
  4. Step 4: Simplify right side
    116,115.18x = 14,652,729,760.17
  5. Step 5: Solve for x
    x = 14,652,729,760.17/116,115.18
  6. Step 6: Final answer
    x = 126,191.34

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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.