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Finding the Fourth Proportional to 84,988.54, 127,371.94 and 35,018.32

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Solution

The fourth proportional to 84,988.54, 127,371.94 and 35,018.32 is: 52,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,988.54 : 127,371.94 = 35,018.32 : x
  2. Step 2: Convert to fraction form
    84,988.54/127,371.94 = 35,018.32/x
  3. Step 3: Cross multiply
    84,988.54x = 127,371.94 × 35,018.32
  4. Step 4: Simplify right side
    84,988.54x = 4,460,351,178.85
  5. Step 5: Solve for x
    x = 4,460,351,178.85/84,988.54
  6. Step 6: Final answer
    x = 52,481.80

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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.