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Finding the Fourth Proportional to 79,398.54, 109,570.95 and 45,406.50

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Solution

The fourth proportional to 79,398.54, 109,570.95 and 45,406.50 is: 62,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,398.54 : 109,570.95 = 45,406.50 : x
  2. Step 2: Convert to fraction form
    79,398.54/109,570.95 = 45,406.50/x
  3. Step 3: Cross multiply
    79,398.54x = 109,570.95 × 45,406.50
  4. Step 4: Simplify right side
    79,398.54x = 4,975,233,341.18
  5. Step 5: Solve for x
    x = 4,975,233,341.18/79,398.54
  6. Step 6: Final answer
    x = 62,661.52

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