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Finding the Fourth Proportional to 185,923, 279,896.11 and 169,389.28

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Solution

The fourth proportional to 185,923, 279,896.11 and 169,389.28 is: 255,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,923 : 279,896.11 = 169,389.28 : x
  2. Step 2: Convert to fraction form
    185,923/279,896.11 = 169,389.28/x
  3. Step 3: Cross multiply
    185,923x = 279,896.11 × 169,389.28
  4. Step 4: Simplify right side
    185,923x = 47,411,400,547.70
  5. Step 5: Solve for x
    x = 47,411,400,547.70/185,923
  6. Step 6: Final answer
    x = 255,005.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.