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Finding the Fourth Proportional to 116,725.98, 174,825.45 and 69,879.90

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Solution

The fourth proportional to 116,725.98, 174,825.45 and 69,879.90 is: 104,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,725.98 : 174,825.45 = 69,879.90 : x
  2. Step 2: Convert to fraction form
    116,725.98/174,825.45 = 69,879.90/x
  3. Step 3: Cross multiply
    116,725.98x = 174,825.45 × 69,879.90
  4. Step 4: Simplify right side
    116,725.98x = 12,216,784,963.46
  5. Step 5: Solve for x
    x = 12,216,784,963.46/116,725.98
  6. Step 6: Final answer
    x = 104,662.09

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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.