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Finding the Fourth Proportional to 114,765.03, 171,619.07 and 109,166.31

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Solution

The fourth proportional to 114,765.03, 171,619.07 and 109,166.31 is: 163,246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,765.03 : 171,619.07 = 109,166.31 : x
  2. Step 2: Convert to fraction form
    114,765.03/171,619.07 = 109,166.31/x
  3. Step 3: Cross multiply
    114,765.03x = 171,619.07 × 109,166.31
  4. Step 4: Simplify right side
    114,765.03x = 18,735,020,051.70
  5. Step 5: Solve for x
    x = 18,735,020,051.70/114,765.03
  6. Step 6: Final answer
    x = 163,246.77

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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.