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Finding the Fourth Proportional to 116,660.80, 174,796.80 and 109,662.40

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Solution

The fourth proportional to 116,660.80, 174,796.80 and 109,662.40 is: 164,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,660.80 : 174,796.80 = 109,662.40 : x
  2. Step 2: Convert to fraction form
    116,660.80/174,796.80 = 109,662.40/x
  3. Step 3: Cross multiply
    116,660.80x = 174,796.80 × 109,662.40
  4. Step 4: Simplify right side
    116,660.80x = 19,168,636,600.32
  5. Step 5: Solve for x
    x = 19,168,636,600.32/116,660.80
  6. Step 6: Final answer
    x = 164,310.86

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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.