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Finding the Fourth Proportional to 443,275.27, 664,710.59 and 158,855.92

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Solution

The fourth proportional to 443,275.27, 664,710.59 and 158,855.92 is: 238,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,275.27 : 664,710.59 = 158,855.92 : x
  2. Step 2: Convert to fraction form
    443,275.27/664,710.59 = 158,855.92/x
  3. Step 3: Cross multiply
    443,275.27x = 664,710.59 × 158,855.92
  4. Step 4: Simplify right side
    443,275.27x = 105,593,211,043.56
  5. Step 5: Solve for x
    x = 105,593,211,043.56/443,275.27
  6. Step 6: Final answer
    x = 238,211.38

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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.