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Finding the Fourth Proportional to 366,908.70, 550,363.05 and 130,275.30

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Solution

The fourth proportional to 366,908.70, 550,363.05 and 130,275.30 is: 195,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,908.70 : 550,363.05 = 130,275.30 : x
  2. Step 2: Convert to fraction form
    366,908.70/550,363.05 = 130,275.30/x
  3. Step 3: Cross multiply
    366,908.70x = 550,363.05 × 130,275.30
  4. Step 4: Simplify right side
    366,908.70x = 71,698,711,447.67
  5. Step 5: Solve for x
    x = 71,698,711,447.67/366,908.70
  6. Step 6: Final answer
    x = 195,412.95

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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.