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Finding the Fourth Proportional to 354,396.10, 531,596.06 and 88,156.61

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Solution

The fourth proportional to 354,396.10, 531,596.06 and 88,156.61 is: 132,235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,396.10 : 531,596.06 = 88,156.61 : x
  2. Step 2: Convert to fraction form
    354,396.10/531,596.06 = 88,156.61/x
  3. Step 3: Cross multiply
    354,396.10x = 531,596.06 × 88,156.61
  4. Step 4: Simplify right side
    354,396.10x = 46,863,706,538.96
  5. Step 5: Solve for x
    x = 46,863,706,538.96/354,396.10
  6. Step 6: Final answer
    x = 132,235.39

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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.