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Finding the Fourth Proportional to 328,900.88, 493,310.32 and 92,262.02

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Solution

The fourth proportional to 328,900.88, 493,310.32 and 92,262.02 is: 138,381.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,900.88 : 493,310.32 = 92,262.02 : x
  2. Step 2: Convert to fraction form
    328,900.88/493,310.32 = 92,262.02/x
  3. Step 3: Cross multiply
    328,900.88x = 493,310.32 × 92,262.02
  4. Step 4: Simplify right side
    328,900.88x = 45,513,803,912.84
  5. Step 5: Solve for x
    x = 45,513,803,912.84/328,900.88
  6. Step 6: Final answer
    x = 138,381.52

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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.