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Finding the Fourth Proportional to 171,212.40, 256,837.80 and 52,882.80

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Solution

The fourth proportional to 171,212.40, 256,837.80 and 52,882.80 is: 79,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,212.40 : 256,837.80 = 52,882.80 : x
  2. Step 2: Convert to fraction form
    171,212.40/256,837.80 = 52,882.80/x
  3. Step 3: Cross multiply
    171,212.40x = 256,837.80 × 52,882.80
  4. Step 4: Simplify right side
    171,212.40x = 13,582,302,009.84
  5. Step 5: Solve for x
    x = 13,582,302,009.84/171,212.40
  6. Step 6: Final answer
    x = 79,330.13

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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.