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Finding the Fourth Proportional to 73,901.08, 101,981.80 and 45,218.58

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Solution

The fourth proportional to 73,901.08, 101,981.80 and 45,218.58 is: 62,400.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,901.08 : 101,981.80 = 45,218.58 : x
  2. Step 2: Convert to fraction form
    73,901.08/101,981.80 = 45,218.58/x
  3. Step 3: Cross multiply
    73,901.08x = 101,981.80 × 45,218.58
  4. Step 4: Simplify right side
    73,901.08x = 4,611,472,181.84
  5. Step 5: Solve for x
    x = 4,611,472,181.84/73,901.08
  6. Step 6: Final answer
    x = 62,400.61

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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.