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Finding the Fourth Proportional to 113,373.73, 156,455.94 and 63,072.73

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Solution

The fourth proportional to 113,373.73, 156,455.94 and 63,072.73 is: 87,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,373.73 : 156,455.94 = 63,072.73 : x
  2. Step 2: Convert to fraction form
    113,373.73/156,455.94 = 63,072.73/x
  3. Step 3: Cross multiply
    113,373.73x = 156,455.94 × 63,072.73
  4. Step 4: Simplify right side
    113,373.73x = 9,868,103,260.52
  5. Step 5: Solve for x
    x = 9,868,103,260.52/113,373.73
  6. Step 6: Final answer
    x = 87,040.47

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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.