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Finding the Fourth Proportional to 121,424.84, 182,093.52 and 51,309.64

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Solution

The fourth proportional to 121,424.84, 182,093.52 and 51,309.64 is: 76,945.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,424.84 : 182,093.52 = 51,309.64 : x
  2. Step 2: Convert to fraction form
    121,424.84/182,093.52 = 51,309.64/x
  3. Step 3: Cross multiply
    121,424.84x = 182,093.52 × 51,309.64
  4. Step 4: Simplify right side
    121,424.84x = 9,343,152,957.53
  5. Step 5: Solve for x
    x = 9,343,152,957.53/121,424.84
  6. Step 6: Final answer
    x = 76,945.98

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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.