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Finding the Fourth Proportional to 192,156,852.40, 288,272,603.40 and 82,981,812.40

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Solution

The fourth proportional to 192,156,852.40, 288,272,603.40 and 82,981,812.40 is: 124,488,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,156,852.40 : 288,272,603.40 = 82,981,812.40 : x
  2. Step 2: Convert to fraction form
    192,156,852.40/288,272,603.40 = 82,981,812.40/x
  3. Step 3: Cross multiply
    192,156,852.40x = 288,272,603.40 × 82,981,812.40
  4. Step 4: Simplify right side
    192,156,852.40x = 23,921,383,095,398,400
  5. Step 5: Solve for x
    x = 23,921,383,095,398,400/192,156,852.40
  6. Step 6: Final answer
    x = 124,488,837.10

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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.