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Finding the Fourth Proportional to 72,866.40, 100,556 and 41,035.84

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Solution

The fourth proportional to 72,866.40, 100,556 and 41,035.84 is: 56,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,866.40 : 100,556 = 41,035.84 : x
  2. Step 2: Convert to fraction form
    72,866.40/100,556 = 41,035.84/x
  3. Step 3: Cross multiply
    72,866.40x = 100,556 × 41,035.84
  4. Step 4: Simplify right side
    72,866.40x = 4,126,399,927.04
  5. Step 5: Solve for x
    x = 4,126,399,927.04/72,866.40
  6. Step 6: Final answer
    x = 56,629.67

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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.