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Finding the Fourth Proportional to 255,207, 382,813.74 and 88,995

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Solution

The fourth proportional to 255,207, 382,813.74 and 88,995 is: 133,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,207 : 382,813.74 = 88,995 : x
  2. Step 2: Convert to fraction form
    255,207/382,813.74 = 88,995/x
  3. Step 3: Cross multiply
    255,207x = 382,813.74 × 88,995
  4. Step 4: Simplify right side
    255,207x = 34,068,508,791.30
  5. Step 5: Solve for x
    x = 34,068,508,791.30/255,207
  6. Step 6: Final answer
    x = 133,493.63

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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.