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Finding the Fourth Proportional to 445,251.84, 667,870.62 and 141,641.76

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Solution

The fourth proportional to 445,251.84, 667,870.62 and 141,641.76 is: 212,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,251.84 : 667,870.62 = 141,641.76 : x
  2. Step 2: Convert to fraction form
    445,251.84/667,870.62 = 141,641.76/x
  3. Step 3: Cross multiply
    445,251.84x = 667,870.62 × 141,641.76
  4. Step 4: Simplify right side
    445,251.84x = 94,598,370,069.09
  5. Step 5: Solve for x
    x = 94,598,370,069.09/445,251.84
  6. Step 6: Final answer
    x = 212,460.37

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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.