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Finding the Fourth Proportional to 659,425.73, 989,000.11 and 186,000.37

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Solution

The fourth proportional to 659,425.73, 989,000.11 and 186,000.37 is: 278,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,425.73 : 989,000.11 = 186,000.37 : x
  2. Step 2: Convert to fraction form
    659,425.73/989,000.11 = 186,000.37/x
  3. Step 3: Cross multiply
    659,425.73x = 989,000.11 × 186,000.37
  4. Step 4: Simplify right side
    659,425.73x = 183,954,386,390.04
  5. Step 5: Solve for x
    x = 183,954,386,390.04/659,425.73
  6. Step 6: Final answer
    x = 278,961.49

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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.