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Finding the Fourth Proportional to 84,687.12, 127,020.88 and 22,362.48

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Solution

The fourth proportional to 84,687.12, 127,020.88 and 22,362.48 is: 33,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,687.12 : 127,020.88 = 22,362.48 : x
  2. Step 2: Convert to fraction form
    84,687.12/127,020.88 = 22,362.48/x
  3. Step 3: Cross multiply
    84,687.12x = 127,020.88 × 22,362.48
  4. Step 4: Simplify right side
    84,687.12x = 2,840,501,888.58
  5. Step 5: Solve for x
    x = 2,840,501,888.58/84,687.12
  6. Step 6: Final answer
    x = 33,541.13

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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.