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Finding the Fourth Proportional to 207,351, 286,043.94 and 180,450.90

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Solution

The fourth proportional to 207,351, 286,043.94 and 180,450.90 is: 248,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,351 : 286,043.94 = 180,450.90 : x
  2. Step 2: Convert to fraction form
    207,351/286,043.94 = 180,450.90/x
  3. Step 3: Cross multiply
    207,351x = 286,043.94 × 180,450.90
  4. Step 4: Simplify right side
    207,351x = 51,616,886,412.55
  5. Step 5: Solve for x
    x = 51,616,886,412.55/207,351
  6. Step 6: Final answer
    x = 248,934.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.