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Finding the Fourth Proportional to 321,881.74, 482,822.59 and 171,666.94

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Solution

The fourth proportional to 321,881.74, 482,822.59 and 171,666.94 is: 257,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,881.74 : 482,822.59 = 171,666.94 : x
  2. Step 2: Convert to fraction form
    321,881.74/482,822.59 = 171,666.94/x
  3. Step 3: Cross multiply
    321,881.74x = 482,822.59 × 171,666.94
  4. Step 4: Simplify right side
    321,881.74x = 82,884,676,588.17
  5. Step 5: Solve for x
    x = 82,884,676,588.17/321,881.74
  6. Step 6: Final answer
    x = 257,500.40

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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.