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Finding the Fourth Proportional to 178,611, 246,440.76 and 101,087.64

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Solution

The fourth proportional to 178,611, 246,440.76 and 101,087.64 is: 139,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,611 : 246,440.76 = 101,087.64 : x
  2. Step 2: Convert to fraction form
    178,611/246,440.76 = 101,087.64/x
  3. Step 3: Cross multiply
    178,611x = 246,440.76 × 101,087.64
  4. Step 4: Simplify right side
    178,611x = 24,912,114,828.21
  5. Step 5: Solve for x
    x = 24,912,114,828.21/178,611
  6. Step 6: Final answer
    x = 139,476.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.