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Finding the Fourth Proportional to 140,607.94, 210,933.82 and 45,816.08

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Solution

The fourth proportional to 140,607.94, 210,933.82 and 45,816.08 is: 68,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,607.94 : 210,933.82 = 45,816.08 : x
  2. Step 2: Convert to fraction form
    140,607.94/210,933.82 = 45,816.08/x
  3. Step 3: Cross multiply
    140,607.94x = 210,933.82 × 45,816.08
  4. Step 4: Simplify right side
    140,607.94x = 9,664,160,771.83
  5. Step 5: Solve for x
    x = 9,664,160,771.83/140,607.94
  6. Step 6: Final answer
    x = 68,731.26

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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.