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Finding the Fourth Proportional to 82,937.76, 124,394.37 and 40,806.54

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Solution

The fourth proportional to 82,937.76, 124,394.37 and 40,806.54 is: 61,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,937.76 : 124,394.37 = 40,806.54 : x
  2. Step 2: Convert to fraction form
    82,937.76/124,394.37 = 40,806.54/x
  3. Step 3: Cross multiply
    82,937.76x = 124,394.37 × 40,806.54
  4. Step 4: Simplify right side
    82,937.76x = 5,076,103,835.18
  5. Step 5: Solve for x
    x = 5,076,103,835.18/82,937.76
  6. Step 6: Final answer
    x = 61,203.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.