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Finding the Fourth Proportional to 363,776.94, 545,824.17 and 127,289.34

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Solution

The fourth proportional to 363,776.94, 545,824.17 and 127,289.34 is: 190,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,776.94 : 545,824.17 = 127,289.34 : x
  2. Step 2: Convert to fraction form
    363,776.94/545,824.17 = 127,289.34/x
  3. Step 3: Cross multiply
    363,776.94x = 545,824.17 × 127,289.34
  4. Step 4: Simplify right side
    363,776.94x = 69,477,598,355.35
  5. Step 5: Solve for x
    x = 69,477,598,355.35/363,776.94
  6. Step 6: Final answer
    x = 190,989.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.