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Finding the Fourth Proportional to 237,790, 356,433.60 and 87,934.16

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Solution

The fourth proportional to 237,790, 356,433.60 and 87,934.16 is: 131,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,790 : 356,433.60 = 87,934.16 : x
  2. Step 2: Convert to fraction form
    237,790/356,433.60 = 87,934.16/x
  3. Step 3: Cross multiply
    237,790x = 356,433.60 × 87,934.16
  4. Step 4: Simplify right side
    237,790x = 31,342,689,211.78
  5. Step 5: Solve for x
    x = 31,342,689,211.78/237,790
  6. Step 6: Final answer
    x = 131,808.27

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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.