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Finding the Fourth Proportional to 568,658,956.86, 853,020,342.81 and 159,683,220.54

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Solution

The fourth proportional to 568,658,956.86, 853,020,342.81 and 159,683,220.54 is: 239,533,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,658,956.86 : 853,020,342.81 = 159,683,220.54 : x
  2. Step 2: Convert to fraction form
    568,658,956.86/853,020,342.81 = 159,683,220.54/x
  3. Step 3: Cross multiply
    568,658,956.86x = 853,020,342.81 × 159,683,220.54
  4. Step 4: Simplify right side
    568,658,956.86x = 136,213,035,526,035,616
  5. Step 5: Solve for x
    x = 136,213,035,526,035,616/568,658,956.86
  6. Step 6: Final answer
    x = 239,533,790.65

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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.