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Finding the Fourth Proportional to 65,315.16, 97,970.58 and 28,379.16

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Solution

The fourth proportional to 65,315.16, 97,970.58 and 28,379.16 is: 42,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,315.16 : 97,970.58 = 28,379.16 : x
  2. Step 2: Convert to fraction form
    65,315.16/97,970.58 = 28,379.16/x
  3. Step 3: Cross multiply
    65,315.16x = 97,970.58 × 28,379.16
  4. Step 4: Simplify right side
    65,315.16x = 2,780,322,765.11
  5. Step 5: Solve for x
    x = 2,780,322,765.11/65,315.16
  6. Step 6: Final answer
    x = 42,567.80

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