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Finding the Fourth Proportional to 124,395.30, 171,665.51 and 67,806.67

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Solution

The fourth proportional to 124,395.30, 171,665.51 and 67,806.67 is: 93,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,395.30 : 171,665.51 = 67,806.67 : x
  2. Step 2: Convert to fraction form
    124,395.30/171,665.51 = 67,806.67/x
  3. Step 3: Cross multiply
    124,395.30x = 171,665.51 × 67,806.67
  4. Step 4: Simplify right side
    124,395.30x = 11,640,066,586.95
  5. Step 5: Solve for x
    x = 11,640,066,586.95/124,395.30
  6. Step 6: Final answer
    x = 93,573.20

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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.