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Finding the Fourth Proportional to 104,193.40, 143,786.70 and 56,447.94

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Solution

The fourth proportional to 104,193.40, 143,786.70 and 56,447.94 is: 77,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,193.40 : 143,786.70 = 56,447.94 : x
  2. Step 2: Convert to fraction form
    104,193.40/143,786.70 = 56,447.94/x
  3. Step 3: Cross multiply
    104,193.40x = 143,786.70 × 56,447.94
  4. Step 4: Simplify right side
    104,193.40x = 8,116,463,014.40
  5. Step 5: Solve for x
    x = 8,116,463,014.40/104,193.40
  6. Step 6: Final answer
    x = 77,898.05

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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.