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Finding the Fourth Proportional to 68,792.10, 103,151.70 and 24,420.30

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Solution

The fourth proportional to 68,792.10, 103,151.70 and 24,420.30 is: 36,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,792.10 : 103,151.70 = 24,420.30 : x
  2. Step 2: Convert to fraction form
    68,792.10/103,151.70 = 24,420.30/x
  3. Step 3: Cross multiply
    68,792.10x = 103,151.70 × 24,420.30
  4. Step 4: Simplify right side
    68,792.10x = 2,518,995,459.51
  5. Step 5: Solve for x
    x = 2,518,995,459.51/68,792.10
  6. Step 6: Final answer
    x = 36,617.51

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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.