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Finding the Fourth Proportional to 140,881.60, 210,933.60 and 109,777.60

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Solution

The fourth proportional to 140,881.60, 210,933.60 and 109,777.60 is: 164,363.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,881.60 : 210,933.60 = 109,777.60 : x
  2. Step 2: Convert to fraction form
    140,881.60/210,933.60 = 109,777.60/x
  3. Step 3: Cross multiply
    140,881.60x = 210,933.60 × 109,777.60
  4. Step 4: Simplify right side
    140,881.60x = 23,155,784,367.36
  5. Step 5: Solve for x
    x = 23,155,784,367.36/140,881.60
  6. Step 6: Final answer
    x = 164,363.44

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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.