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Finding the Fourth Proportional to 323,675.98, 485,515.50 and 99,036.05

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Solution

The fourth proportional to 323,675.98, 485,515.50 and 99,036.05 is: 148,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,675.98 : 485,515.50 = 99,036.05 : x
  2. Step 2: Convert to fraction form
    323,675.98/485,515.50 = 99,036.05/x
  3. Step 3: Cross multiply
    323,675.98x = 485,515.50 × 99,036.05
  4. Step 4: Simplify right side
    323,675.98x = 48,083,539,188.43
  5. Step 5: Solve for x
    x = 48,083,539,188.43/323,675.98
  6. Step 6: Final answer
    x = 148,554.55

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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.