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Finding the Fourth Proportional to 123,950.52, 171,051.25 and 70,245.81

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Solution

The fourth proportional to 123,950.52, 171,051.25 and 70,245.81 is: 96,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,950.52 : 171,051.25 = 70,245.81 : x
  2. Step 2: Convert to fraction form
    123,950.52/171,051.25 = 70,245.81/x
  3. Step 3: Cross multiply
    123,950.52x = 171,051.25 × 70,245.81
  4. Step 4: Simplify right side
    123,950.52x = 12,015,633,607.76
  5. Step 5: Solve for x
    x = 12,015,633,607.76/123,950.52
  6. Step 6: Final answer
    x = 96,938.95

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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.