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Finding the Fourth Proportional to 170,565.92, 255,516.42 and 103,840.56

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Solution

The fourth proportional to 170,565.92, 255,516.42 and 103,840.56 is: 155,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,565.92 : 255,516.42 = 103,840.56 : x
  2. Step 2: Convert to fraction form
    170,565.92/255,516.42 = 103,840.56/x
  3. Step 3: Cross multiply
    170,565.92x = 255,516.42 × 103,840.56
  4. Step 4: Simplify right side
    170,565.92x = 26,532,968,142.00
  5. Step 5: Solve for x
    x = 26,532,968,142.00/170,565.92
  6. Step 6: Final answer
    x = 155,558.44

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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.