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Finding the Fourth Proportional to 150,596.60, 207,821.37 and 86,065.11

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Solution

The fourth proportional to 150,596.60, 207,821.37 and 86,065.11 is: 118,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,596.60 : 207,821.37 = 86,065.11 : x
  2. Step 2: Convert to fraction form
    150,596.60/207,821.37 = 86,065.11/x
  3. Step 3: Cross multiply
    150,596.60x = 207,821.37 × 86,065.11
  4. Step 4: Simplify right side
    150,596.60x = 17,886,169,069.40
  5. Step 5: Solve for x
    x = 17,886,169,069.40/150,596.60
  6. Step 6: Final answer
    x = 118,768.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.