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Finding the Fourth Proportional to 93,435.10, 139,824.60 and 63,910.60

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Solution

The fourth proportional to 93,435.10, 139,824.60 and 63,910.60 is: 95,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,435.10 : 139,824.60 = 63,910.60 : x
  2. Step 2: Convert to fraction form
    93,435.10/139,824.60 = 63,910.60/x
  3. Step 3: Cross multiply
    93,435.10x = 139,824.60 × 63,910.60
  4. Step 4: Simplify right side
    93,435.10x = 8,936,274,080.76
  5. Step 5: Solve for x
    x = 8,936,274,080.76/93,435.10
  6. Step 6: Final answer
    x = 95,641.51

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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.