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Finding the Fourth Proportional to 449,817.49, 674,715.48 and 146,211.28

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Solution

The fourth proportional to 449,817.49, 674,715.48 and 146,211.28 is: 219,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,817.49 : 674,715.48 = 146,211.28 : x
  2. Step 2: Convert to fraction form
    449,817.49/674,715.48 = 146,211.28/x
  3. Step 3: Cross multiply
    449,817.49x = 674,715.48 × 146,211.28
  4. Step 4: Simplify right side
    449,817.49x = 98,651,013,966.61
  5. Step 5: Solve for x
    x = 98,651,013,966.61/449,817.49
  6. Step 6: Final answer
    x = 219,313.42

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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.