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Finding the Fourth Proportional to 104,250.54, 143,865.99 and 56,503.83

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Solution

The fourth proportional to 104,250.54, 143,865.99 and 56,503.83 is: 77,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,250.54 : 143,865.99 = 56,503.83 : x
  2. Step 2: Convert to fraction form
    104,250.54/143,865.99 = 56,503.83/x
  3. Step 3: Cross multiply
    104,250.54x = 143,865.99 × 56,503.83
  4. Step 4: Simplify right side
    104,250.54x = 8,128,979,441.74
  5. Step 5: Solve for x
    x = 8,128,979,441.74/104,250.54
  6. Step 6: Final answer
    x = 77,975.42

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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.