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Finding the Fourth Proportional to 452,718.81, 678,972.92 and 168,543.27

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Solution

The fourth proportional to 452,718.81, 678,972.92 and 168,543.27 is: 252,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,718.81 : 678,972.92 = 168,543.27 : x
  2. Step 2: Convert to fraction form
    452,718.81/678,972.92 = 168,543.27/x
  3. Step 3: Cross multiply
    452,718.81x = 678,972.92 × 168,543.27
  4. Step 4: Simplify right side
    452,718.81x = 114,436,315,335.53
  5. Step 5: Solve for x
    x = 114,436,315,335.53/452,718.81
  6. Step 6: Final answer
    x = 252,775.70

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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.