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Finding the Fourth Proportional to 666,174, 999,269.51 and 192,859.82

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Solution

The fourth proportional to 666,174, 999,269.51 and 192,859.82 is: 289,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,174 : 999,269.51 = 192,859.82 : x
  2. Step 2: Convert to fraction form
    666,174/999,269.51 = 192,859.82/x
  3. Step 3: Cross multiply
    666,174x = 999,269.51 × 192,859.82
  4. Step 4: Simplify right side
    666,174x = 192,718,931,869.44
  5. Step 5: Solve for x
    x = 192,718,931,869.44/666,174
  6. Step 6: Final answer
    x = 289,292.18

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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.