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Finding the Fourth Proportional to 104,251.50, 143,866.26 and 56,503.62

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Solution

The fourth proportional to 104,251.50, 143,866.26 and 56,503.62 is: 77,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,251.50 : 143,866.26 = 56,503.62 : x
  2. Step 2: Convert to fraction form
    104,251.50/143,866.26 = 56,503.62/x
  3. Step 3: Cross multiply
    104,251.50x = 143,866.26 × 56,503.62
  4. Step 4: Simplify right side
    104,251.50x = 8,128,964,485.86
  5. Step 5: Solve for x
    x = 8,128,964,485.86/104,251.50
  6. Step 6: Final answer
    x = 77,974.56

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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.