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Finding the Fourth Proportional to 170,426.84, 255,550.72 and 75,615.96

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Solution

The fourth proportional to 170,426.84, 255,550.72 and 75,615.96 is: 113,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,426.84 : 255,550.72 = 75,615.96 : x
  2. Step 2: Convert to fraction form
    170,426.84/255,550.72 = 75,615.96/x
  3. Step 3: Cross multiply
    170,426.84x = 255,550.72 × 75,615.96
  4. Step 4: Simplify right side
    170,426.84x = 19,323,713,021.49
  5. Step 5: Solve for x
    x = 19,323,713,021.49/170,426.84
  6. Step 6: Final answer
    x = 113,384.21

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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.