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Finding the Fourth Proportional to 79,792.66, 110,114.16 and 43,981.90

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Solution

The fourth proportional to 79,792.66, 110,114.16 and 43,981.90 is: 60,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,792.66 : 110,114.16 = 43,981.90 : x
  2. Step 2: Convert to fraction form
    79,792.66/110,114.16 = 43,981.90/x
  3. Step 3: Cross multiply
    79,792.66x = 110,114.16 × 43,981.90
  4. Step 4: Simplify right side
    79,792.66x = 4,843,029,973.70
  5. Step 5: Solve for x
    x = 4,843,029,973.70/79,792.66
  6. Step 6: Final answer
    x = 60,695.18

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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.