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Finding the Fourth Proportional to 192,458,445.60, 288,687,668.40 and 56,126,114.40

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Solution

The fourth proportional to 192,458,445.60, 288,687,668.40 and 56,126,114.40 is: 84,189,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,458,445.60 : 288,687,668.40 = 56,126,114.40 : x
  2. Step 2: Convert to fraction form
    192,458,445.60/288,687,668.40 = 56,126,114.40/x
  3. Step 3: Cross multiply
    192,458,445.60x = 288,687,668.40 × 56,126,114.40
  4. Step 4: Simplify right side
    192,458,445.60x = 16,202,917,102,487,664
  5. Step 5: Solve for x
    x = 16,202,917,102,487,664/192,458,445.60
  6. Step 6: Final answer
    x = 84,189,171.60

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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.