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Finding the Fourth Proportional to 82,215.75, 113,457.84 and 44,490

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Solution

The fourth proportional to 82,215.75, 113,457.84 and 44,490 is: 61,396.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,215.75 : 113,457.84 = 44,490 : x
  2. Step 2: Convert to fraction form
    82,215.75/113,457.84 = 44,490/x
  3. Step 3: Cross multiply
    82,215.75x = 113,457.84 × 44,490
  4. Step 4: Simplify right side
    82,215.75x = 5,047,739,301.60
  5. Step 5: Solve for x
    x = 5,047,739,301.60/82,215.75
  6. Step 6: Final answer
    x = 61,396.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.