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Finding the Fourth Proportional to 202,539.69, 279,486.25 and 111,893.81

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Solution

The fourth proportional to 202,539.69, 279,486.25 and 111,893.81 is: 154,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,539.69 : 279,486.25 = 111,893.81 : x
  2. Step 2: Convert to fraction form
    202,539.69/279,486.25 = 111,893.81/x
  3. Step 3: Cross multiply
    202,539.69x = 279,486.25 × 111,893.81
  4. Step 4: Simplify right side
    202,539.69x = 31,272,779,677.95
  5. Step 5: Solve for x
    x = 31,272,779,677.95/202,539.69
  6. Step 6: Final answer
    x = 154,403.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.