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Finding the Fourth Proportional to 61,579.48, 84,988.50 and 44,639.80

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Solution

The fourth proportional to 61,579.48, 84,988.50 and 44,639.80 is: 61,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,579.48 : 84,988.50 = 44,639.80 : x
  2. Step 2: Convert to fraction form
    61,579.48/84,988.50 = 44,639.80/x
  3. Step 3: Cross multiply
    61,579.48x = 84,988.50 × 44,639.80
  4. Step 4: Simplify right side
    61,579.48x = 3,793,869,642.30
  5. Step 5: Solve for x
    x = 3,793,869,642.30/61,579.48
  6. Step 6: Final answer
    x = 61,609.32

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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.