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Finding the Fourth Proportional to 321,426.52, 482,044.74 and 121,598.68

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Solution

The fourth proportional to 321,426.52, 482,044.74 and 121,598.68 is: 182,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,426.52 : 482,044.74 = 121,598.68 : x
  2. Step 2: Convert to fraction form
    321,426.52/482,044.74 = 121,598.68/x
  3. Step 3: Cross multiply
    321,426.52x = 482,044.74 × 121,598.68
  4. Step 4: Simplify right side
    321,426.52x = 58,616,004,084.94
  5. Step 5: Solve for x
    x = 58,616,004,084.94/321,426.52
  6. Step 6: Final answer
    x = 182,362.07

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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.