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Finding the Fourth Proportional to 170,484.65, 255,800.71 and 91,506.61

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Solution

The fourth proportional to 170,484.65, 255,800.71 and 91,506.61 is: 137,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,484.65 : 255,800.71 = 91,506.61 : x
  2. Step 2: Convert to fraction form
    170,484.65/255,800.71 = 91,506.61/x
  3. Step 3: Cross multiply
    170,484.65x = 255,800.71 × 91,506.61
  4. Step 4: Simplify right side
    170,484.65x = 23,407,455,282.57
  5. Step 5: Solve for x
    x = 23,407,455,282.57/170,484.65
  6. Step 6: Final answer
    x = 137,299.49

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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.