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Finding the Fourth Proportional to 339,966.60, 469,154.36 and 189,063.60

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Solution

The fourth proportional to 339,966.60, 469,154.36 and 189,063.60 is: 260,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,966.60 : 469,154.36 = 189,063.60 : x
  2. Step 2: Convert to fraction form
    339,966.60/469,154.36 = 189,063.60/x
  3. Step 3: Cross multiply
    339,966.60x = 469,154.36 × 189,063.60
  4. Step 4: Simplify right side
    339,966.60x = 88,700,012,257.30
  5. Step 5: Solve for x
    x = 88,700,012,257.30/339,966.60
  6. Step 6: Final answer
    x = 260,908.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.