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Finding the Fourth Proportional to 452,690.92, 679,141.60 and 132,829.88

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Solution

The fourth proportional to 452,690.92, 679,141.60 and 132,829.88 is: 199,275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,690.92 : 679,141.60 = 132,829.88 : x
  2. Step 2: Convert to fraction form
    452,690.92/679,141.60 = 132,829.88/x
  3. Step 3: Cross multiply
    452,690.92x = 679,141.60 × 132,829.88
  4. Step 4: Simplify right side
    452,690.92x = 90,210,297,231.01
  5. Step 5: Solve for x
    x = 90,210,297,231.01/452,690.92
  6. Step 6: Final answer
    x = 199,275.69

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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.