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Finding the Fourth Proportional to 250,781.93, 376,201.43 and 90,933.16

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Solution

The fourth proportional to 250,781.93, 376,201.43 and 90,933.16 is: 136,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,781.93 : 376,201.43 = 90,933.16 : x
  2. Step 2: Convert to fraction form
    250,781.93/376,201.43 = 90,933.16/x
  3. Step 3: Cross multiply
    250,781.93x = 376,201.43 × 90,933.16
  4. Step 4: Simplify right side
    250,781.93x = 34,209,182,945.41
  5. Step 5: Solve for x
    x = 34,209,182,945.41/250,781.93
  6. Step 6: Final answer
    x = 136,410.08

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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.