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Finding the Fourth Proportional to 76,846.70, 106,056.60 and 45,042.32

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Solution

The fourth proportional to 76,846.70, 106,056.60 and 45,042.32 is: 62,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,846.70 : 106,056.60 = 45,042.32 : x
  2. Step 2: Convert to fraction form
    76,846.70/106,056.60 = 45,042.32/x
  3. Step 3: Cross multiply
    76,846.70x = 106,056.60 × 45,042.32
  4. Step 4: Simplify right side
    76,846.70x = 4,777,035,315.31
  5. Step 5: Solve for x
    x = 4,777,035,315.31/76,846.70
  6. Step 6: Final answer
    x = 62,163.18

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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.