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Finding the Fourth Proportional to 322,417.94, 482,889.40 and 154,056.61

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Solution

The fourth proportional to 322,417.94, 482,889.40 and 154,056.61 is: 230,732.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,417.94 : 482,889.40 = 154,056.61 : x
  2. Step 2: Convert to fraction form
    322,417.94/482,889.40 = 154,056.61/x
  3. Step 3: Cross multiply
    322,417.94x = 482,889.40 × 154,056.61
  4. Step 4: Simplify right side
    322,417.94x = 74,392,302,829.28
  5. Step 5: Solve for x
    x = 74,392,302,829.28/322,417.94
  6. Step 6: Final answer
    x = 230,732.51

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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.