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Finding the Fourth Proportional to 323,561.94, 485,344.08 and 98,921.52

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Solution

The fourth proportional to 323,561.94, 485,344.08 and 98,921.52 is: 148,382.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,561.94 : 485,344.08 = 98,921.52 : x
  2. Step 2: Convert to fraction form
    323,561.94/485,344.08 = 98,921.52/x
  3. Step 3: Cross multiply
    323,561.94x = 485,344.08 × 98,921.52
  4. Step 4: Simplify right side
    323,561.94x = 48,010,974,116.60
  5. Step 5: Solve for x
    x = 48,010,974,116.60/323,561.94
  6. Step 6: Final answer
    x = 148,382.64

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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.