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Finding the Fourth Proportional to 76,580.70, 105,685.48 and 44,768.22

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Solution

The fourth proportional to 76,580.70, 105,685.48 and 44,768.22 is: 61,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,580.70 : 105,685.48 = 44,768.22 : x
  2. Step 2: Convert to fraction form
    76,580.70/105,685.48 = 44,768.22/x
  3. Step 3: Cross multiply
    76,580.70x = 105,685.48 × 44,768.22
  4. Step 4: Simplify right side
    76,580.70x = 4,731,350,819.45
  5. Step 5: Solve for x
    x = 4,731,350,819.45/76,580.70
  6. Step 6: Final answer
    x = 61,782.55

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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.