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Finding the Fourth Proportional to 76,039.84, 104,923.52 and 45,819.12

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Solution

The fourth proportional to 76,039.84, 104,923.52 and 45,819.12 is: 63,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,039.84 : 104,923.52 = 45,819.12 : x
  2. Step 2: Convert to fraction form
    76,039.84/104,923.52 = 45,819.12/x
  3. Step 3: Cross multiply
    76,039.84x = 104,923.52 × 45,819.12
  4. Step 4: Simplify right side
    76,039.84x = 4,807,503,353.70
  5. Step 5: Solve for x
    x = 4,807,503,353.70/76,039.84
  6. Step 6: Final answer
    x = 63,223.48

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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.