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Finding the Fourth Proportional to 323,465.94, 485,272.72 and 98,858.31

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Solution

The fourth proportional to 323,465.94, 485,272.72 and 98,858.31 is: 148,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,465.94 : 485,272.72 = 98,858.31 : x
  2. Step 2: Convert to fraction form
    323,465.94/485,272.72 = 98,858.31/x
  3. Step 3: Cross multiply
    323,465.94x = 485,272.72 × 98,858.31
  4. Step 4: Simplify right side
    323,465.94x = 47,973,239,292.10
  5. Step 5: Solve for x
    x = 47,973,239,292.10/323,465.94
  6. Step 6: Final answer
    x = 148,310.02

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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.