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Finding the Fourth Proportional to 352,418.84, 486,341.54 and 191,275.32

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Solution

The fourth proportional to 352,418.84, 486,341.54 and 191,275.32 is: 263,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,418.84 : 486,341.54 = 191,275.32 : x
  2. Step 2: Convert to fraction form
    352,418.84/486,341.54 = 191,275.32/x
  3. Step 3: Cross multiply
    352,418.84x = 486,341.54 × 191,275.32
  4. Step 4: Simplify right side
    352,418.84x = 93,025,133,692.79
  5. Step 5: Solve for x
    x = 93,025,133,692.79/352,418.84
  6. Step 6: Final answer
    x = 263,961.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.