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Finding the Fourth Proportional to 117,445.86, 176,102.76 and 38,553.48

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Solution

The fourth proportional to 117,445.86, 176,102.76 and 38,553.48 is: 57,808.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,445.86 : 176,102.76 = 38,553.48 : x
  2. Step 2: Convert to fraction form
    117,445.86/176,102.76 = 38,553.48/x
  3. Step 3: Cross multiply
    117,445.86x = 176,102.76 × 38,553.48
  4. Step 4: Simplify right side
    117,445.86x = 6,789,374,235.60
  5. Step 5: Solve for x
    x = 6,789,374,235.60/117,445.86
  6. Step 6: Final answer
    x = 57,808.54

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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.