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Finding the Fourth Proportional to 323,647.66, 485,393.54 and 99,010.04

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Solution

The fourth proportional to 323,647.66, 485,393.54 and 99,010.04 is: 148,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,647.66 : 485,393.54 = 99,010.04 : x
  2. Step 2: Convert to fraction form
    323,647.66/485,393.54 = 99,010.04/x
  3. Step 3: Cross multiply
    323,647.66x = 485,393.54 × 99,010.04
  4. Step 4: Simplify right side
    323,647.66x = 48,058,833,811.14
  5. Step 5: Solve for x
    x = 48,058,833,811.14/323,647.66
  6. Step 6: Final answer
    x = 148,491.21

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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.