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Finding the Fourth Proportional to 76,513.74, 105,558.78 and 44,242.50

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Solution

The fourth proportional to 76,513.74, 105,558.78 and 44,242.50 is: 61,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,513.74 : 105,558.78 = 44,242.50 : x
  2. Step 2: Convert to fraction form
    76,513.74/105,558.78 = 44,242.50/x
  3. Step 3: Cross multiply
    76,513.74x = 105,558.78 × 44,242.50
  4. Step 4: Simplify right side
    76,513.74x = 4,670,184,324.15
  5. Step 5: Solve for x
    x = 4,670,184,324.15/76,513.74
  6. Step 6: Final answer
    x = 61,037.20

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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.