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Finding the Fourth Proportional to 312,363.90, 468,550.89 and 112,827.42

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Solution

The fourth proportional to 312,363.90, 468,550.89 and 112,827.42 is: 169,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,363.90 : 468,550.89 = 112,827.42 : x
  2. Step 2: Convert to fraction form
    312,363.90/468,550.89 = 112,827.42/x
  3. Step 3: Cross multiply
    312,363.90x = 468,550.89 × 112,827.42
  4. Step 4: Simplify right side
    312,363.90x = 52,865,388,057.40
  5. Step 5: Solve for x
    x = 52,865,388,057.40/312,363.90
  6. Step 6: Final answer
    x = 169,242.95

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1.5x scale

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.