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Finding the Fourth Proportional to 329,021.10, 493,531.65 and 92,403.90

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Solution

The fourth proportional to 329,021.10, 493,531.65 and 92,403.90 is: 138,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,021.10 : 493,531.65 = 92,403.90 : x
  2. Step 2: Convert to fraction form
    329,021.10/493,531.65 = 92,403.90/x
  3. Step 3: Cross multiply
    329,021.10x = 493,531.65 × 92,403.90
  4. Step 4: Simplify right side
    329,021.10x = 45,604,249,233.44
  5. Step 5: Solve for x
    x = 45,604,249,233.44/329,021.10
  6. Step 6: Final answer
    x = 138,605.85

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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.