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Finding the Fourth Proportional to 352,396.50, 486,303.13 and 191,251.66

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Solution

The fourth proportional to 352,396.50, 486,303.13 and 191,251.66 is: 263,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,396.50 : 486,303.13 = 191,251.66 : x
  2. Step 2: Convert to fraction form
    352,396.50/486,303.13 = 191,251.66/x
  3. Step 3: Cross multiply
    352,396.50x = 486,303.13 × 191,251.66
  4. Step 4: Simplify right side
    352,396.50x = 93,006,280,397.57
  5. Step 5: Solve for x
    x = 93,006,280,397.57/352,396.50
  6. Step 6: Final answer
    x = 263,925.09

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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.