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Finding the Fourth Proportional to 308,264.40, 462,871.80 and 168,296.40

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Solution

The fourth proportional to 308,264.40, 462,871.80 and 168,296.40 is: 252,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,264.40 : 462,871.80 = 168,296.40 : x
  2. Step 2: Convert to fraction form
    308,264.40/462,871.80 = 168,296.40/x
  3. Step 3: Cross multiply
    308,264.40x = 462,871.80 × 168,296.40
  4. Step 4: Simplify right side
    308,264.40x = 77,899,657,601.52
  5. Step 5: Solve for x
    x = 77,899,657,601.52/308,264.40
  6. Step 6: Final answer
    x = 252,704.03

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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.