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Finding the Fourth Proportional to 93,602.86, 140,273.08 and 49,139.78

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Solution

The fourth proportional to 93,602.86, 140,273.08 and 49,139.78 is: 73,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,602.86 : 140,273.08 = 49,139.78 : x
  2. Step 2: Convert to fraction form
    93,602.86/140,273.08 = 49,139.78/x
  3. Step 3: Cross multiply
    93,602.86x = 140,273.08 × 49,139.78
  4. Step 4: Simplify right side
    93,602.86x = 6,892,988,291.12
  5. Step 5: Solve for x
    x = 6,892,988,291.12/93,602.86
  6. Step 6: Final answer
    x = 73,640.79

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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.