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Finding the Fourth Proportional to 104,571.41, 144,309.87 and 56,825.55

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Solution

The fourth proportional to 104,571.41, 144,309.87 and 56,825.55 is: 78,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,571.41 : 144,309.87 = 56,825.55 : x
  2. Step 2: Convert to fraction form
    104,571.41/144,309.87 = 56,825.55/x
  3. Step 3: Cross multiply
    104,571.41x = 144,309.87 × 56,825.55
  4. Step 4: Simplify right side
    104,571.41x = 8,200,487,733.18
  5. Step 5: Solve for x
    x = 8,200,487,733.18/104,571.41
  6. Step 6: Final answer
    x = 78,419.98

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1.5x scale

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.