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Finding the Fourth Proportional to 124,950, 187,450.92 and 51,078

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Solution

The fourth proportional to 124,950, 187,450.92 and 51,078 is: 76,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,950 : 187,450.92 = 51,078 : x
  2. Step 2: Convert to fraction form
    124,950/187,450.92 = 51,078/x
  3. Step 3: Cross multiply
    124,950x = 187,450.92 × 51,078
  4. Step 4: Simplify right side
    124,950x = 9,574,618,091.76
  5. Step 5: Solve for x
    x = 9,574,618,091.76/124,950
  6. Step 6: Final answer
    x = 76,627.60

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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.