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Finding the Fourth Proportional to 72,666.18, 109,049.09 and 28,293.17

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Solution

The fourth proportional to 72,666.18, 109,049.09 and 28,293.17 is: 42,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,666.18 : 109,049.09 = 28,293.17 : x
  2. Step 2: Convert to fraction form
    72,666.18/109,049.09 = 28,293.17/x
  3. Step 3: Cross multiply
    72,666.18x = 109,049.09 × 28,293.17
  4. Step 4: Simplify right side
    72,666.18x = 3,085,343,755.00
  5. Step 5: Solve for x
    x = 3,085,343,755.00/72,666.18
  6. Step 6: Final answer
    x = 42,459.14

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