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Finding the Fourth Proportional to 170,236, 255,402.72 and 57,940.96

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Solution

The fourth proportional to 170,236, 255,402.72 and 57,940.96 is: 86,928.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,236 : 255,402.72 = 57,940.96 : x
  2. Step 2: Convert to fraction form
    170,236/255,402.72 = 57,940.96/x
  3. Step 3: Cross multiply
    170,236x = 255,402.72 × 57,940.96
  4. Step 4: Simplify right side
    170,236x = 14,798,278,783.41
  5. Step 5: Solve for x
    x = 14,798,278,783.41/170,236
  6. Step 6: Final answer
    x = 86,928.02

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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.