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Finding the Fourth Proportional to 85,119.98, 127,675.17 and 37,721.42

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Solution

The fourth proportional to 85,119.98, 127,675.17 and 37,721.42 is: 56,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,119.98 : 127,675.17 = 37,721.42 : x
  2. Step 2: Convert to fraction form
    85,119.98/127,675.17 = 37,721.42/x
  3. Step 3: Cross multiply
    85,119.98x = 127,675.17 × 37,721.42
  4. Step 4: Simplify right side
    85,119.98x = 4,816,088,711.14
  5. Step 5: Solve for x
    x = 4,816,088,711.14/85,119.98
  6. Step 6: Final answer
    x = 56,580.00

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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.