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Finding the Fourth Proportional to 72,200.66, 108,210.78 and 34,753.77

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Solution

The fourth proportional to 72,200.66, 108,210.78 and 34,753.77 is: 52,087.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,200.66 : 108,210.78 = 34,753.77 : x
  2. Step 2: Convert to fraction form
    72,200.66/108,210.78 = 34,753.77/x
  3. Step 3: Cross multiply
    72,200.66x = 108,210.78 × 34,753.77
  4. Step 4: Simplify right side
    72,200.66x = 3,760,732,559.64
  5. Step 5: Solve for x
    x = 3,760,732,559.64/72,200.66
  6. Step 6: Final answer
    x = 52,087.24

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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.