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Finding the Fourth Proportional to 321,525.64, 482,325.72 and 121,995.10

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Solution

The fourth proportional to 321,525.64, 482,325.72 and 121,995.10 is: 183,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,525.64 : 482,325.72 = 121,995.10 : x
  2. Step 2: Convert to fraction form
    321,525.64/482,325.72 = 121,995.10/x
  3. Step 3: Cross multiply
    321,525.64x = 482,325.72 × 121,995.10
  4. Step 4: Simplify right side
    321,525.64x = 58,841,374,443.97
  5. Step 5: Solve for x
    x = 58,841,374,443.97/321,525.64
  6. Step 6: Final answer
    x = 183,006.79

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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.