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Finding the Fourth Proportional to 76,483.70, 105,541.32 and 44,220.39

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Solution

The fourth proportional to 76,483.70, 105,541.32 and 44,220.39 is: 61,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,483.70 : 105,541.32 = 44,220.39 : x
  2. Step 2: Convert to fraction form
    76,483.70/105,541.32 = 44,220.39/x
  3. Step 3: Cross multiply
    76,483.70x = 105,541.32 × 44,220.39
  4. Step 4: Simplify right side
    76,483.70x = 4,667,078,396.12
  5. Step 5: Solve for x
    x = 4,667,078,396.12/76,483.70
  6. Step 6: Final answer
    x = 61,020.56

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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.