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Finding the Fourth Proportional to 135,457.59, 203,205.44 and 56,553.87

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Solution

The fourth proportional to 135,457.59, 203,205.44 and 56,553.87 is: 84,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,457.59 : 203,205.44 = 56,553.87 : x
  2. Step 2: Convert to fraction form
    135,457.59/203,205.44 = 56,553.87/x
  3. Step 3: Cross multiply
    135,457.59x = 203,205.44 × 56,553.87
  4. Step 4: Simplify right side
    135,457.59x = 11,492,053,754.28
  5. Step 5: Solve for x
    x = 11,492,053,754.28/135,457.59
  6. Step 6: Final answer
    x = 84,838.76

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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.