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Finding the Fourth Proportional to 78,155.73, 107,842.72 and 46,319.49

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Solution

The fourth proportional to 78,155.73, 107,842.72 and 46,319.49 is: 63,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,155.73 : 107,842.72 = 46,319.49 : x
  2. Step 2: Convert to fraction form
    78,155.73/107,842.72 = 46,319.49/x
  3. Step 3: Cross multiply
    78,155.73x = 107,842.72 × 46,319.49
  4. Step 4: Simplify right side
    78,155.73x = 4,995,219,790.61
  5. Step 5: Solve for x
    x = 4,995,219,790.61/78,155.73
  6. Step 6: Final answer
    x = 63,913.67

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