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Finding the Fourth Proportional to 104,247.54, 143,859.87 and 56,500.47

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Solution

The fourth proportional to 104,247.54, 143,859.87 and 56,500.47 is: 77,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,247.54 : 143,859.87 = 56,500.47 : x
  2. Step 2: Convert to fraction form
    104,247.54/143,859.87 = 56,500.47/x
  3. Step 3: Cross multiply
    104,247.54x = 143,859.87 × 56,500.47
  4. Step 4: Simplify right side
    104,247.54x = 8,128,150,269.14
  5. Step 5: Solve for x
    x = 8,128,150,269.14/104,247.54
  6. Step 6: Final answer
    x = 77,969.71

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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.