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Finding the Fourth Proportional to 170,455.50, 255,720.16 and 65,274.47

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Solution

The fourth proportional to 170,455.50, 255,720.16 and 65,274.47 is: 97,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,455.50 : 255,720.16 = 65,274.47 : x
  2. Step 2: Convert to fraction form
    170,455.50/255,720.16 = 65,274.47/x
  3. Step 3: Cross multiply
    170,455.50x = 255,720.16 × 65,274.47
  4. Step 4: Simplify right side
    170,455.50x = 16,691,998,388.43
  5. Step 5: Solve for x
    x = 16,691,998,388.43/170,455.50
  6. Step 6: Final answer
    x = 97,925.84

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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.