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Finding the Fourth Proportional to 72,562.77, 100,141.11 and 48,322.17

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Solution

The fourth proportional to 72,562.77, 100,141.11 and 48,322.17 is: 66,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,562.77 : 100,141.11 = 48,322.17 : x
  2. Step 2: Convert to fraction form
    72,562.77/100,141.11 = 48,322.17/x
  3. Step 3: Cross multiply
    72,562.77x = 100,141.11 × 48,322.17
  4. Step 4: Simplify right side
    72,562.77x = 4,839,035,741.41
  5. Step 5: Solve for x
    x = 4,839,035,741.41/72,562.77
  6. Step 6: Final answer
    x = 66,687.58

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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.