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Finding the Fourth Proportional to 183,212.95, 274,775.22 and 76,539.28

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Solution

The fourth proportional to 183,212.95, 274,775.22 and 76,539.28 is: 114,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,212.95 : 274,775.22 = 76,539.28 : x
  2. Step 2: Convert to fraction form
    183,212.95/274,775.22 = 76,539.28/x
  3. Step 3: Cross multiply
    183,212.95x = 274,775.22 × 76,539.28
  4. Step 4: Simplify right side
    183,212.95x = 21,031,097,500.64
  5. Step 5: Solve for x
    x = 21,031,097,500.64/183,212.95
  6. Step 6: Final answer
    x = 114,790.45

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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.