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Finding the Fourth Proportional to 196,172,607.80, 294,258,911.70 and 81,118,911.80

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Solution

The fourth proportional to 196,172,607.80, 294,258,911.70 and 81,118,911.80 is: 121,678,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,172,607.80 : 294,258,911.70 = 81,118,911.80 : x
  2. Step 2: Convert to fraction form
    196,172,607.80/294,258,911.70 = 81,118,911.80/x
  3. Step 3: Cross multiply
    196,172,607.80x = 294,258,911.70 × 81,118,911.80
  4. Step 4: Simplify right side
    196,172,607.80x = 23,869,962,704,556,288
  5. Step 5: Solve for x
    x = 23,869,962,704,556,288/196,172,607.80
  6. Step 6: Final answer
    x = 121,678,367.70

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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.