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Finding the Fourth Proportional to 144,604.56, 216,624.34 and 99,617.98

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Solution

The fourth proportional to 144,604.56, 216,624.34 and 99,617.98 is: 149,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,604.56 : 216,624.34 = 99,617.98 : x
  2. Step 2: Convert to fraction form
    144,604.56/216,624.34 = 99,617.98/x
  3. Step 3: Cross multiply
    144,604.56x = 216,624.34 × 99,617.98
  4. Step 4: Simplify right side
    144,604.56x = 21,579,679,169.63
  5. Step 5: Solve for x
    x = 21,579,679,169.63/144,604.56
  6. Step 6: Final answer
    x = 149,232.36

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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.