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Finding the Fourth Proportional to 484,415.10, 726,389.37 and 168,865.02

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Solution

The fourth proportional to 484,415.10, 726,389.37 and 168,865.02 is: 253,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,415.10 : 726,389.37 = 168,865.02 : x
  2. Step 2: Convert to fraction form
    484,415.10/726,389.37 = 168,865.02/x
  3. Step 3: Cross multiply
    484,415.10x = 726,389.37 × 168,865.02
  4. Step 4: Simplify right side
    484,415.10x = 122,661,755,492.84
  5. Step 5: Solve for x
    x = 122,661,755,492.84/484,415.10
  6. Step 6: Final answer
    x = 253,216.21

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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.