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Finding the Fourth Proportional to 140,029.40, 209,980.92 and 40,166.93

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Solution

The fourth proportional to 140,029.40, 209,980.92 and 40,166.93 is: 60,232.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,029.40 : 209,980.92 = 40,166.93 : x
  2. Step 2: Convert to fraction form
    140,029.40/209,980.92 = 40,166.93/x
  3. Step 3: Cross multiply
    140,029.40x = 209,980.92 × 40,166.93
  4. Step 4: Simplify right side
    140,029.40x = 8,434,288,914.98
  5. Step 5: Solve for x
    x = 8,434,288,914.98/140,029.40
  6. Step 6: Final answer
    x = 60,232.27

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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.