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Finding the Fourth Proportional to 171,379.84, 256,734.96 and 118,062.40

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Solution

The fourth proportional to 171,379.84, 256,734.96 and 118,062.40 is: 176,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,379.84 : 256,734.96 = 118,062.40 : x
  2. Step 2: Convert to fraction form
    171,379.84/256,734.96 = 118,062.40/x
  3. Step 3: Cross multiply
    171,379.84x = 256,734.96 × 118,062.40
  4. Step 4: Simplify right side
    171,379.84x = 30,310,745,541.50
  5. Step 5: Solve for x
    x = 30,310,745,541.50/171,379.84
  6. Step 6: Final answer
    x = 176,862.96

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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.