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Finding the Fourth Proportional to 107,779.96, 148,742.31 and 64,772.61

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Solution

The fourth proportional to 107,779.96, 148,742.31 and 64,772.61 is: 89,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,779.96 : 148,742.31 = 64,772.61 : x
  2. Step 2: Convert to fraction form
    107,779.96/148,742.31 = 64,772.61/x
  3. Step 3: Cross multiply
    107,779.96x = 148,742.31 × 64,772.61
  4. Step 4: Simplify right side
    107,779.96x = 9,634,427,636.13
  5. Step 5: Solve for x
    x = 9,634,427,636.13/107,779.96
  6. Step 6: Final answer
    x = 89,389.79

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