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Finding the Fourth Proportional to 323,702.68, 485,625.16 and 99,080.45

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Solution

The fourth proportional to 323,702.68, 485,625.16 and 99,080.45 is: 148,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,702.68 : 485,625.16 = 99,080.45 : x
  2. Step 2: Convert to fraction form
    323,702.68/485,625.16 = 99,080.45/x
  3. Step 3: Cross multiply
    323,702.68x = 485,625.16 × 99,080.45
  4. Step 4: Simplify right side
    323,702.68x = 48,115,956,460.59
  5. Step 5: Solve for x
    x = 48,115,956,460.59/323,702.68
  6. Step 6: Final answer
    x = 148,642.44

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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.