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Finding the Fourth Proportional to 187,008,620.90, 280,512,931.35 and 187,008,620.90

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Solution

The fourth proportional to 187,008,620.90, 280,512,931.35 and 187,008,620.90 is: 280,512,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,008,620.90 : 280,512,931.35 = 187,008,620.90 : x
  2. Step 2: Convert to fraction form
    187,008,620.90/280,512,931.35 = 187,008,620.90/x
  3. Step 3: Cross multiply
    187,008,620.90x = 280,512,931.35 × 187,008,620.90
  4. Step 4: Simplify right side
    187,008,620.90x = 52,458,336,436,379,880
  5. Step 5: Solve for x
    x = 52,458,336,436,379,880/187,008,620.90
  6. Step 6: Final answer
    x = 280,512,931.35

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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.