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Finding the Fourth Proportional to 72,052.98, 108,005.61 and 29,957.49

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Solution

The fourth proportional to 72,052.98, 108,005.61 and 29,957.49 is: 44,905.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,052.98 : 108,005.61 = 29,957.49 : x
  2. Step 2: Convert to fraction form
    72,052.98/108,005.61 = 29,957.49/x
  3. Step 3: Cross multiply
    72,052.98x = 108,005.61 × 29,957.49
  4. Step 4: Simplify right side
    72,052.98x = 3,235,576,981.52
  5. Step 5: Solve for x
    x = 3,235,576,981.52/72,052.98
  6. Step 6: Final answer
    x = 44,905.53

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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.