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Finding the Fourth Proportional to 51,238.60, 76,342.70 and 48,373.80

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Solution

The fourth proportional to 51,238.60, 76,342.70 and 48,373.80 is: 72,074.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.60 : 76,342.70 = 48,373.80 : x
  2. Step 2: Convert to fraction form
    51,238.60/76,342.70 = 48,373.80/x
  3. Step 3: Cross multiply
    51,238.60x = 76,342.70 × 48,373.80
  4. Step 4: Simplify right side
    51,238.60x = 3,692,986,501.26
  5. Step 5: Solve for x
    x = 3,692,986,501.26/51,238.60
  6. Step 6: Final answer
    x = 72,074.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.