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Finding the Fourth Proportional to 73,219.32, 109,703.59 and 39,962.72

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Solution

The fourth proportional to 73,219.32, 109,703.59 and 39,962.72 is: 59,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,219.32 : 109,703.59 = 39,962.72 : x
  2. Step 2: Convert to fraction form
    73,219.32/109,703.59 = 39,962.72/x
  3. Step 3: Cross multiply
    73,219.32x = 109,703.59 × 39,962.72
  4. Step 4: Simplify right side
    73,219.32x = 4,384,054,024.52
  5. Step 5: Solve for x
    x = 4,384,054,024.52/73,219.32
  6. Step 6: Final answer
    x = 59,875.65

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