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Finding the Fourth Proportional to 104,247.54, 143,861.85 and 56,500.83

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Solution

The fourth proportional to 104,247.54, 143,861.85 and 56,500.83 is: 77,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,247.54 : 143,861.85 = 56,500.83 : x
  2. Step 2: Convert to fraction form
    104,247.54/143,861.85 = 56,500.83/x
  3. Step 3: Cross multiply
    104,247.54x = 143,861.85 × 56,500.83
  4. Step 4: Simplify right side
    104,247.54x = 8,128,313,930.34
  5. Step 5: Solve for x
    x = 8,128,313,930.34/104,247.54
  6. Step 6: Final answer
    x = 77,971.28

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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.