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Finding the Fourth Proportional to 170,457.75, 255,723.54 and 65,276.73

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Solution

The fourth proportional to 170,457.75, 255,723.54 and 65,276.73 is: 97,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,457.75 : 255,723.54 = 65,276.73 : x
  2. Step 2: Convert to fraction form
    170,457.75/255,723.54 = 65,276.73/x
  3. Step 3: Cross multiply
    170,457.75x = 255,723.54 × 65,276.73
  4. Step 4: Simplify right side
    170,457.75x = 16,692,796,475.22
  5. Step 5: Solve for x
    x = 16,692,796,475.22/170,457.75
  6. Step 6: Final answer
    x = 97,929.23

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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.