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Finding the Fourth Proportional to 329,709,834.60, 494,564,751.90 and 99,654,930.60

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Solution

The fourth proportional to 329,709,834.60, 494,564,751.90 and 99,654,930.60 is: 149,482,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,709,834.60 : 494,564,751.90 = 99,654,930.60 : x
  2. Step 2: Convert to fraction form
    329,709,834.60/494,564,751.90 = 99,654,930.60/x
  3. Step 3: Cross multiply
    329,709,834.60x = 494,564,751.90 × 99,654,930.60
  4. Step 4: Simplify right side
    329,709,834.60x = 49,285,816,027,800,712
  5. Step 5: Solve for x
    x = 49,285,816,027,800,712/329,709,834.60
  6. Step 6: Final answer
    x = 149,482,395.90

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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.