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Finding the Fourth Proportional to 106,766.94, 147,242.92 and 88,588.86

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Solution

The fourth proportional to 106,766.94, 147,242.92 and 88,588.86 is: 122,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,766.94 : 147,242.92 = 88,588.86 : x
  2. Step 2: Convert to fraction form
    106,766.94/147,242.92 = 88,588.86/x
  3. Step 3: Cross multiply
    106,766.94x = 147,242.92 × 88,588.86
  4. Step 4: Simplify right side
    106,766.94x = 13,044,082,425.87
  5. Step 5: Solve for x
    x = 13,044,082,425.87/106,766.94
  6. Step 6: Final answer
    x = 122,173.42

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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.