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Finding the Fourth Proportional to 97,477.94, 134,512.05 and 55,040.66

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Solution

The fourth proportional to 97,477.94, 134,512.05 and 55,040.66 is: 75,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,477.94 : 134,512.05 = 55,040.66 : x
  2. Step 2: Convert to fraction form
    97,477.94/134,512.05 = 55,040.66/x
  3. Step 3: Cross multiply
    97,477.94x = 134,512.05 × 55,040.66
  4. Step 4: Simplify right side
    97,477.94x = 7,403,632,009.95
  5. Step 5: Solve for x
    x = 7,403,632,009.95/97,477.94
  6. Step 6: Final answer
    x = 75,951.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.