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Finding the Fourth Proportional to 132,892.86, 199,015.44 and 87,886.80

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Solution

The fourth proportional to 132,892.86, 199,015.44 and 87,886.80 is: 131,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,892.86 : 199,015.44 = 87,886.80 : x
  2. Step 2: Convert to fraction form
    132,892.86/199,015.44 = 87,886.80/x
  3. Step 3: Cross multiply
    132,892.86x = 199,015.44 × 87,886.80
  4. Step 4: Simplify right side
    132,892.86x = 17,490,830,172.19
  5. Step 5: Solve for x
    x = 17,490,830,172.19/132,892.86
  6. Step 6: Final answer
    x = 131,616.03

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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.