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Finding the Fourth Proportional to 274,184.76, 411,479.25 and 130,091.18

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Solution

The fourth proportional to 274,184.76, 411,479.25 and 130,091.18 is: 195,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,184.76 : 411,479.25 = 130,091.18 : x
  2. Step 2: Convert to fraction form
    274,184.76/411,479.25 = 130,091.18/x
  3. Step 3: Cross multiply
    274,184.76x = 411,479.25 × 130,091.18
  4. Step 4: Simplify right side
    274,184.76x = 53,529,819,120.62
  5. Step 5: Solve for x
    x = 53,529,819,120.62/274,184.76
  6. Step 6: Final answer
    x = 195,232.66

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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.