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Finding the Fourth Proportional to 192,462,337.80, 288,693,506.70 and 54,287,677.80

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Solution

The fourth proportional to 192,462,337.80, 288,693,506.70 and 54,287,677.80 is: 81,431,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,462,337.80 : 288,693,506.70 = 54,287,677.80 : x
  2. Step 2: Convert to fraction form
    192,462,337.80/288,693,506.70 = 54,287,677.80/x
  3. Step 3: Cross multiply
    192,462,337.80x = 288,693,506.70 × 54,287,677.80
  4. Step 4: Simplify right side
    192,462,337.80x = 15,672,500,074,681,740
  5. Step 5: Solve for x
    x = 15,672,500,074,681,740/192,462,337.80
  6. Step 6: Final answer
    x = 81,431,516.70

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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.