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Finding the Fourth Proportional to 133,603,357.20, 200,377,042.20 and 65,494,928.40

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Solution

The fourth proportional to 133,603,357.20, 200,377,042.20 and 65,494,928.40 is: 98,228,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,603,357.20 : 200,377,042.20 = 65,494,928.40 : x
  2. Step 2: Convert to fraction form
    133,603,357.20/200,377,042.20 = 65,494,928.40/x
  3. Step 3: Cross multiply
    133,603,357.20x = 200,377,042.20 × 65,494,928.40
  4. Step 4: Simplify right side
    133,603,357.20x = 13,123,680,031,892,778
  5. Step 5: Solve for x
    x = 13,123,680,031,892,778/133,603,357.20
  6. Step 6: Final answer
    x = 98,228,669.60

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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.