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Finding the Fourth Proportional to 329,291.04, 493,396.56 and 139,599.84

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Solution

The fourth proportional to 329,291.04, 493,396.56 and 139,599.84 is: 209,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,291.04 : 493,396.56 = 139,599.84 : x
  2. Step 2: Convert to fraction form
    329,291.04/493,396.56 = 139,599.84/x
  3. Step 3: Cross multiply
    329,291.04x = 493,396.56 × 139,599.84
  4. Step 4: Simplify right side
    329,291.04x = 68,878,080,832.55
  5. Step 5: Solve for x
    x = 68,878,080,832.55/329,291.04
  6. Step 6: Final answer
    x = 209,170.83

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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.