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Finding the Fourth Proportional to 453,912.50, 680,671.80 and 154,312.60

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Solution

The fourth proportional to 453,912.50, 680,671.80 and 154,312.60 is: 231,401.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,912.50 : 680,671.80 = 154,312.60 : x
  2. Step 2: Convert to fraction form
    453,912.50/680,671.80 = 154,312.60/x
  3. Step 3: Cross multiply
    453,912.50x = 680,671.80 × 154,312.60
  4. Step 4: Simplify right side
    453,912.50x = 105,036,235,204.68
  5. Step 5: Solve for x
    x = 105,036,235,204.68/453,912.50
  6. Step 6: Final answer
    x = 231,401.94

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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.