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Finding the Fourth Proportional to 321,594.40, 482,460.90 and 108,383.68

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Solution

The fourth proportional to 321,594.40, 482,460.90 and 108,383.68 is: 162,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,594.40 : 482,460.90 = 108,383.68 : x
  2. Step 2: Convert to fraction form
    321,594.40/482,460.90 = 108,383.68/x
  3. Step 3: Cross multiply
    321,594.40x = 482,460.90 × 108,383.68
  4. Step 4: Simplify right side
    321,594.40x = 52,290,887,798.11
  5. Step 5: Solve for x
    x = 52,290,887,798.11/321,594.40
  6. Step 6: Final answer
    x = 162,598.88

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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.