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Finding the Fourth Proportional to 192,797,490.80, 289,195,605.48 and 69,975,644.60

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Solution

The fourth proportional to 192,797,490.80, 289,195,605.48 and 69,975,644.60 is: 104,963,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,797,490.80 : 289,195,605.48 = 69,975,644.60 : x
  2. Step 2: Convert to fraction form
    192,797,490.80/289,195,605.48 = 69,975,644.60/x
  3. Step 3: Cross multiply
    192,797,490.80x = 289,195,605.48 × 69,975,644.60
  4. Step 4: Simplify right side
    192,797,490.80x = 20,236,648,908,950,292
  5. Step 5: Solve for x
    x = 20,236,648,908,950,292/192,797,490.80
  6. Step 6: Final answer
    x = 104,963,237.98

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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.