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Finding the Fourth Proportional to 113,861.61, 157,117.08 and 66,105.63

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Solution

The fourth proportional to 113,861.61, 157,117.08 and 66,105.63 is: 91,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,861.61 : 157,117.08 = 66,105.63 : x
  2. Step 2: Convert to fraction form
    113,861.61/157,117.08 = 66,105.63/x
  3. Step 3: Cross multiply
    113,861.61x = 157,117.08 × 66,105.63
  4. Step 4: Simplify right side
    113,861.61x = 10,386,323,557.16
  5. Step 5: Solve for x
    x = 10,386,323,557.16/113,861.61
  6. Step 6: Final answer
    x = 91,218.84

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