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Finding the Fourth Proportional to 129,792.16, 179,095.44 and 79,480.48

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Solution

The fourth proportional to 129,792.16, 179,095.44 and 79,480.48 is: 109,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,792.16 : 179,095.44 = 79,480.48 : x
  2. Step 2: Convert to fraction form
    129,792.16/179,095.44 = 79,480.48/x
  3. Step 3: Cross multiply
    129,792.16x = 179,095.44 × 79,480.48
  4. Step 4: Simplify right side
    129,792.16x = 14,234,591,537.01
  5. Step 5: Solve for x
    x = 14,234,591,537.01/129,792.16
  6. Step 6: Final answer
    x = 109,672.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.