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Finding the Fourth Proportional to 124,847.43, 187,289.79 and 45,955.67

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Solution

The fourth proportional to 124,847.43, 187,289.79 and 45,955.67 is: 68,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,847.43 : 187,289.79 = 45,955.67 : x
  2. Step 2: Convert to fraction form
    124,847.43/187,289.79 = 45,955.67/x
  3. Step 3: Cross multiply
    124,847.43x = 187,289.79 × 45,955.67
  4. Step 4: Simplify right side
    124,847.43x = 8,607,026,847.16
  5. Step 5: Solve for x
    x = 8,607,026,847.16/124,847.43
  6. Step 6: Final answer
    x = 68,940.36

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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.