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Finding the Fourth Proportional to 171,836.51, 257,409.84 and 87,593.27

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Solution

The fourth proportional to 171,836.51, 257,409.84 and 87,593.27 is: 131,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,836.51 : 257,409.84 = 87,593.27 : x
  2. Step 2: Convert to fraction form
    171,836.51/257,409.84 = 87,593.27/x
  3. Step 3: Cross multiply
    171,836.51x = 257,409.84 × 87,593.27
  4. Step 4: Simplify right side
    171,836.51x = 22,547,368,328.73
  5. Step 5: Solve for x
    x = 22,547,368,328.73/171,836.51
  6. Step 6: Final answer
    x = 131,214.08

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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.