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Finding the Fourth Proportional to 328,907.89, 493,320.81 and 92,269.02

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Solution

The fourth proportional to 328,907.89, 493,320.81 and 92,269.02 is: 138,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,907.89 : 493,320.81 = 92,269.02 : x
  2. Step 2: Convert to fraction form
    328,907.89/493,320.81 = 92,269.02/x
  3. Step 3: Cross multiply
    328,907.89x = 493,320.81 × 92,269.02
  4. Step 4: Simplify right side
    328,907.89x = 45,518,227,684.31
  5. Step 5: Solve for x
    x = 45,518,227,684.31/328,907.89
  6. Step 6: Final answer
    x = 138,392.02

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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.