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Finding the Fourth Proportional to 336,089.20, 504,133.80 and 86,771.20

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Solution

The fourth proportional to 336,089.20, 504,133.80 and 86,771.20 is: 130,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,089.20 : 504,133.80 = 86,771.20 : x
  2. Step 2: Convert to fraction form
    336,089.20/504,133.80 = 86,771.20/x
  3. Step 3: Cross multiply
    336,089.20x = 504,133.80 × 86,771.20
  4. Step 4: Simplify right side
    336,089.20x = 43,744,294,786.56
  5. Step 5: Solve for x
    x = 43,744,294,786.56/336,089.20
  6. Step 6: Final answer
    x = 130,156.80

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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.