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Finding the Fourth Proportional to 124,940.80, 187,346.40 and 46,014.40

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Solution

The fourth proportional to 124,940.80, 187,346.40 and 46,014.40 is: 68,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,940.80 : 187,346.40 = 46,014.40 : x
  2. Step 2: Convert to fraction form
    124,940.80/187,346.40 = 46,014.40/x
  3. Step 3: Cross multiply
    124,940.80x = 187,346.40 × 46,014.40
  4. Step 4: Simplify right side
    124,940.80x = 8,620,632,188.16
  5. Step 5: Solve for x
    x = 8,620,632,188.16/124,940.80
  6. Step 6: Final answer
    x = 68,997.73

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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.