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Finding the Fourth Proportional to 452,262.06, 678,491.49 and 136,710.75

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Solution

The fourth proportional to 452,262.06, 678,491.49 and 136,710.75 is: 205,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,262.06 : 678,491.49 = 136,710.75 : x
  2. Step 2: Convert to fraction form
    452,262.06/678,491.49 = 136,710.75/x
  3. Step 3: Cross multiply
    452,262.06x = 678,491.49 × 136,710.75
  4. Step 4: Simplify right side
    452,262.06x = 92,757,080,466.52
  5. Step 5: Solve for x
    x = 92,757,080,466.52/452,262.06
  6. Step 6: Final answer
    x = 205,095.87

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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.