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Finding the Fourth Proportional to 169,584.81, 254,382.62 and 85,298.94

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Solution

The fourth proportional to 169,584.81, 254,382.62 and 85,298.94 is: 127,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,584.81 : 254,382.62 = 85,298.94 : x
  2. Step 2: Convert to fraction form
    169,584.81/254,382.62 = 85,298.94/x
  3. Step 3: Cross multiply
    169,584.81x = 254,382.62 × 85,298.94
  4. Step 4: Simplify right side
    169,584.81x = 21,698,567,840.42
  5. Step 5: Solve for x
    x = 21,698,567,840.42/169,584.81
  6. Step 6: Final answer
    x = 127,951.13

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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.