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Finding the Fourth Proportional to 93,480.72, 140,221.08 and 49,694.48

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Solution

The fourth proportional to 93,480.72, 140,221.08 and 49,694.48 is: 74,541.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,480.72 : 140,221.08 = 49,694.48 : x
  2. Step 2: Convert to fraction form
    93,480.72/140,221.08 = 49,694.48/x
  3. Step 3: Cross multiply
    93,480.72x = 140,221.08 × 49,694.48
  4. Step 4: Simplify right side
    93,480.72x = 6,968,213,655.64
  5. Step 5: Solve for x
    x = 6,968,213,655.64/93,480.72
  6. Step 6: Final answer
    x = 74,541.72

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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.