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Finding the Fourth Proportional to 104,728.32, 157,102.20 and 42,403.68

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Solution

The fourth proportional to 104,728.32, 157,102.20 and 42,403.68 is: 63,609.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,728.32 : 157,102.20 = 42,403.68 : x
  2. Step 2: Convert to fraction form
    104,728.32/157,102.20 = 42,403.68/x
  3. Step 3: Cross multiply
    104,728.32x = 157,102.20 × 42,403.68
  4. Step 4: Simplify right side
    104,728.32x = 6,661,711,416.10
  5. Step 5: Solve for x
    x = 6,661,711,416.10/104,728.32
  6. Step 6: Final answer
    x = 63,609.46

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