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Finding the Fourth Proportional to 205,675.01, 308,457.15 and 72,537.96

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Solution

The fourth proportional to 205,675.01, 308,457.15 and 72,537.96 is: 108,787.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,675.01 : 308,457.15 = 72,537.96 : x
  2. Step 2: Convert to fraction form
    205,675.01/308,457.15 = 72,537.96/x
  3. Step 3: Cross multiply
    205,675.01x = 308,457.15 × 72,537.96
  4. Step 4: Simplify right side
    205,675.01x = 22,374,853,293.11
  5. Step 5: Solve for x
    x = 22,374,853,293.11/205,675.01
  6. Step 6: Final answer
    x = 108,787.42

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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.