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Finding the Fourth Proportional to 182,989.40, 274,510.32 and 56,640.74

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Solution

The fourth proportional to 182,989.40, 274,510.32 and 56,640.74 is: 84,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,989.40 : 274,510.32 = 56,640.74 : x
  2. Step 2: Convert to fraction form
    182,989.40/274,510.32 = 56,640.74/x
  3. Step 3: Cross multiply
    182,989.40x = 274,510.32 × 56,640.74
  4. Step 4: Simplify right side
    182,989.40x = 15,548,466,289.89
  5. Step 5: Solve for x
    x = 15,548,466,289.89/182,989.40
  6. Step 6: Final answer
    x = 84,969.22

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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.