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Finding the Fourth Proportional to 370,912.77, 556,363.12 and 118,189.85

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Solution

The fourth proportional to 370,912.77, 556,363.12 and 118,189.85 is: 177,282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,912.77 : 556,363.12 = 118,189.85 : x
  2. Step 2: Convert to fraction form
    370,912.77/556,363.12 = 118,189.85/x
  3. Step 3: Cross multiply
    370,912.77x = 556,363.12 × 118,189.85
  4. Step 4: Simplify right side
    370,912.77x = 65,756,473,698.33
  5. Step 5: Solve for x
    x = 65,756,473,698.33/370,912.77
  6. Step 6: Final answer
    x = 177,282.85

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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.