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Finding the Fourth Proportional to 170,665.76, 256,035.04 and 65,483.84

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Solution

The fourth proportional to 170,665.76, 256,035.04 and 65,483.84 is: 98,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,665.76 : 256,035.04 = 65,483.84 : x
  2. Step 2: Convert to fraction form
    170,665.76/256,035.04 = 65,483.84/x
  3. Step 3: Cross multiply
    170,665.76x = 256,035.04 × 65,483.84
  4. Step 4: Simplify right side
    170,665.76x = 16,766,157,593.75
  5. Step 5: Solve for x
    x = 16,766,157,593.75/170,665.76
  6. Step 6: Final answer
    x = 98,239.73

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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.