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Finding the Fourth Proportional to 170,344.73, 255,574 and 75,561.86

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Solution

The fourth proportional to 170,344.73, 255,574 and 75,561.86 is: 113,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,344.73 : 255,574 = 75,561.86 : x
  2. Step 2: Convert to fraction form
    170,344.73/255,574 = 75,561.86/x
  3. Step 3: Cross multiply
    170,344.73x = 255,574 × 75,561.86
  4. Step 4: Simplify right side
    170,344.73x = 19,311,646,807.64
  5. Step 5: Solve for x
    x = 19,311,646,807.64/170,344.73
  6. Step 6: Final answer
    x = 113,368.03

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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.