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Finding the Fourth Proportional to 84,974.44, 127,497.50 and 45,521

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Solution

The fourth proportional to 84,974.44, 127,497.50 and 45,521 is: 68,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,974.44 : 127,497.50 = 45,521 : x
  2. Step 2: Convert to fraction form
    84,974.44/127,497.50 = 45,521/x
  3. Step 3: Cross multiply
    84,974.44x = 127,497.50 × 45,521
  4. Step 4: Simplify right side
    84,974.44x = 5,803,813,697.50
  5. Step 5: Solve for x
    x = 5,803,813,697.50/84,974.44
  6. Step 6: Final answer
    x = 68,300.70

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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.