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Finding the Fourth Proportional to 76,218.84, 105,180.12 and 44,393.94

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Solution

The fourth proportional to 76,218.84, 105,180.12 and 44,393.94 is: 61,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,218.84 : 105,180.12 = 44,393.94 : x
  2. Step 2: Convert to fraction form
    76,218.84/105,180.12 = 44,393.94/x
  3. Step 3: Cross multiply
    76,218.84x = 105,180.12 × 44,393.94
  4. Step 4: Simplify right side
    76,218.84x = 4,669,359,936.47
  5. Step 5: Solve for x
    x = 4,669,359,936.47/76,218.84
  6. Step 6: Final answer
    x = 61,262.54

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1.5x scale

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.