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Finding the Fourth Proportional to 436,586.30, 654,901.32 and 156,103.58

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Solution

The fourth proportional to 436,586.30, 654,901.32 and 156,103.58 is: 234,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,586.30 : 654,901.32 = 156,103.58 : x
  2. Step 2: Convert to fraction form
    436,586.30/654,901.32 = 156,103.58/x
  3. Step 3: Cross multiply
    436,586.30x = 654,901.32 × 156,103.58
  4. Step 4: Simplify right side
    436,586.30x = 102,232,440,598.73
  5. Step 5: Solve for x
    x = 102,232,440,598.73/436,586.30
  6. Step 6: Final answer
    x = 234,163.19

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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.