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Finding the Fourth Proportional to 115,630.94, 173,443.70 and 53,301.44

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Solution

The fourth proportional to 115,630.94, 173,443.70 and 53,301.44 is: 79,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,630.94 : 173,443.70 = 53,301.44 : x
  2. Step 2: Convert to fraction form
    115,630.94/173,443.70 = 53,301.44/x
  3. Step 3: Cross multiply
    115,630.94x = 173,443.70 × 53,301.44
  4. Step 4: Simplify right side
    115,630.94x = 9,244,798,968.93
  5. Step 5: Solve for x
    x = 9,244,798,968.93/115,630.94
  6. Step 6: Final answer
    x = 79,950.91

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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.