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Finding the Fourth Proportional to 636,234.67, 954,343.59 and 156,466.61

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Solution

The fourth proportional to 636,234.67, 954,343.59 and 156,466.61 is: 234,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,234.67 : 954,343.59 = 156,466.61 : x
  2. Step 2: Convert to fraction form
    636,234.67/954,343.59 = 156,466.61/x
  3. Step 3: Cross multiply
    636,234.67x = 954,343.59 × 156,466.61
  4. Step 4: Simplify right side
    636,234.67x = 149,322,906,302.53
  5. Step 5: Solve for x
    x = 149,322,906,302.53/636,234.67
  6. Step 6: Final answer
    x = 234,697.85

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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.