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Finding the Fourth Proportional to 323,552.95, 485,327.36 and 98,912.51

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Solution

The fourth proportional to 323,552.95, 485,327.36 and 98,912.51 is: 148,368.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,552.95 : 485,327.36 = 98,912.51 : x
  2. Step 2: Convert to fraction form
    323,552.95/485,327.36 = 98,912.51/x
  3. Step 3: Cross multiply
    323,552.95x = 485,327.36 × 98,912.51
  4. Step 4: Simplify right side
    323,552.95x = 48,004,946,989.90
  5. Step 5: Solve for x
    x = 48,004,946,989.90/323,552.95
  6. Step 6: Final answer
    x = 148,368.13

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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.