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Finding the Fourth Proportional to 348,562.85, 522,842.45 and 189,648.96

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Solution

The fourth proportional to 348,562.85, 522,842.45 and 189,648.96 is: 284,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,562.85 : 522,842.45 = 189,648.96 : x
  2. Step 2: Convert to fraction form
    348,562.85/522,842.45 = 189,648.96/x
  3. Step 3: Cross multiply
    348,562.85x = 522,842.45 × 189,648.96
  4. Step 4: Simplify right side
    348,562.85x = 99,156,525,938.11
  5. Step 5: Solve for x
    x = 99,156,525,938.11/348,562.85
  6. Step 6: Final answer
    x = 284,472.45

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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.