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Finding the Fourth Proportional to 108,874,981.80, 163,312,472.70 and 100,560,882.60

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Solution

The fourth proportional to 108,874,981.80, 163,312,472.70 and 100,560,882.60 is: 150,841,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,874,981.80 : 163,312,472.70 = 100,560,882.60 : x
  2. Step 2: Convert to fraction form
    108,874,981.80/163,312,472.70 = 100,560,882.60/x
  3. Step 3: Cross multiply
    108,874,981.80x = 163,312,472.70 × 100,560,882.60
  4. Step 4: Simplify right side
    108,874,981.80x = 16,422,846,394,300,402
  5. Step 5: Solve for x
    x = 16,422,846,394,300,402/108,874,981.80
  6. Step 6: Final answer
    x = 150,841,323.90

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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.