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Finding the Fourth Proportional to 171,630.84, 257,443.02 and 53,299.56

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Solution

The fourth proportional to 171,630.84, 257,443.02 and 53,299.56 is: 79,948.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,630.84 : 257,443.02 = 53,299.56 : x
  2. Step 2: Convert to fraction form
    171,630.84/257,443.02 = 53,299.56/x
  3. Step 3: Cross multiply
    171,630.84x = 257,443.02 × 53,299.56
  4. Step 4: Simplify right side
    171,630.84x = 13,721,599,691.07
  5. Step 5: Solve for x
    x = 13,721,599,691.07/171,630.84
  6. Step 6: Final answer
    x = 79,948.33

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1.5x scale

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.