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Finding the Fourth Proportional to 443,107.60, 664,661.40 and 176,909.20

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Solution

The fourth proportional to 443,107.60, 664,661.40 and 176,909.20 is: 265,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,107.60 : 664,661.40 = 176,909.20 : x
  2. Step 2: Convert to fraction form
    443,107.60/664,661.40 = 176,909.20/x
  3. Step 3: Cross multiply
    443,107.60x = 664,661.40 × 176,909.20
  4. Step 4: Simplify right side
    443,107.60x = 117,584,716,544.88
  5. Step 5: Solve for x
    x = 117,584,716,544.88/443,107.60
  6. Step 6: Final answer
    x = 265,363.80

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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.