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Finding the Fourth Proportional to 146,358.88, 201,975.46 and 79,290.88

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Solution

The fourth proportional to 146,358.88, 201,975.46 and 79,290.88 is: 109,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,358.88 : 201,975.46 = 79,290.88 : x
  2. Step 2: Convert to fraction form
    146,358.88/201,975.46 = 79,290.88/x
  3. Step 3: Cross multiply
    146,358.88x = 201,975.46 × 79,290.88
  4. Step 4: Simplify right side
    146,358.88x = 16,014,811,961.80
  5. Step 5: Solve for x
    x = 16,014,811,961.80/146,358.88
  6. Step 6: Final answer
    x = 109,421.53

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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.