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Finding the Fourth Proportional to 78,452.45, 108,266.65 and 44,459.81

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Solution

The fourth proportional to 78,452.45, 108,266.65 and 44,459.81 is: 61,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,452.45 : 108,266.65 = 44,459.81 : x
  2. Step 2: Convert to fraction form
    78,452.45/108,266.65 = 44,459.81/x
  3. Step 3: Cross multiply
    78,452.45x = 108,266.65 × 44,459.81
  4. Step 4: Simplify right side
    78,452.45x = 4,813,514,871.40
  5. Step 5: Solve for x
    x = 4,813,514,871.40/78,452.45
  6. Step 6: Final answer
    x = 61,355.83

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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.