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Finding the Fourth Proportional to 170,440.96, 255,661.43 and 65,259.92

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Solution

The fourth proportional to 170,440.96, 255,661.43 and 65,259.92 is: 97,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,440.96 : 255,661.43 = 65,259.92 : x
  2. Step 2: Convert to fraction form
    170,440.96/255,661.43 = 65,259.92/x
  3. Step 3: Cross multiply
    170,440.96x = 255,661.43 × 65,259.92
  4. Step 4: Simplify right side
    170,440.96x = 16,684,444,468.89
  5. Step 5: Solve for x
    x = 16,684,444,468.89/170,440.96
  6. Step 6: Final answer
    x = 97,889.88

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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.