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Finding the Fourth Proportional to 253,919.16, 350,398.38 and 139,195.32

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Solution

The fourth proportional to 253,919.16, 350,398.38 and 139,195.32 is: 192,084.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,919.16 : 350,398.38 = 139,195.32 : x
  2. Step 2: Convert to fraction form
    253,919.16/350,398.38 = 139,195.32/x
  3. Step 3: Cross multiply
    253,919.16x = 350,398.38 × 139,195.32
  4. Step 4: Simplify right side
    253,919.16x = 48,773,814,631.58
  5. Step 5: Solve for x
    x = 48,773,814,631.58/253,919.16
  6. Step 6: Final answer
    x = 192,084.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.