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Finding the Fourth Proportional to 531,920.25, 797,878.49 and 132,561.36

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Solution

The fourth proportional to 531,920.25, 797,878.49 and 132,561.36 is: 198,841.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,920.25 : 797,878.49 = 132,561.36 : x
  2. Step 2: Convert to fraction form
    531,920.25/797,878.49 = 132,561.36/x
  3. Step 3: Cross multiply
    531,920.25x = 797,878.49 × 132,561.36
  4. Step 4: Simplify right side
    531,920.25x = 105,767,857,086.34
  5. Step 5: Solve for x
    x = 105,767,857,086.34/531,920.25
  6. Step 6: Final answer
    x = 198,841.57

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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.