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Finding the Fourth Proportional to 104,611.46, 144,362.10 and 56,866

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Solution

The fourth proportional to 104,611.46, 144,362.10 and 56,866 is: 78,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,611.46 : 144,362.10 = 56,866 : x
  2. Step 2: Convert to fraction form
    104,611.46/144,362.10 = 56,866/x
  3. Step 3: Cross multiply
    104,611.46x = 144,362.10 × 56,866
  4. Step 4: Simplify right side
    104,611.46x = 8,209,295,178.60
  5. Step 5: Solve for x
    x = 8,209,295,178.60/104,611.46
  6. Step 6: Final answer
    x = 78,474.15

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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.