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Finding the Fourth Proportional to 170,918.60, 256,301.10 and 65,702.60

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Solution

The fourth proportional to 170,918.60, 256,301.10 and 65,702.60 is: 98,524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,918.60 : 256,301.10 = 65,702.60 : x
  2. Step 2: Convert to fraction form
    170,918.60/256,301.10 = 65,702.60/x
  3. Step 3: Cross multiply
    170,918.60x = 256,301.10 × 65,702.60
  4. Step 4: Simplify right side
    170,918.60x = 16,839,648,652.86
  5. Step 5: Solve for x
    x = 16,839,648,652.86/170,918.60
  6. Step 6: Final answer
    x = 98,524.38

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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.