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Finding the Fourth Proportional to 64,409.58, 88,877.79 and 38,931.30

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Solution

The fourth proportional to 64,409.58, 88,877.79 and 38,931.30 is: 53,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,409.58 : 88,877.79 = 38,931.30 : x
  2. Step 2: Convert to fraction form
    64,409.58/88,877.79 = 38,931.30/x
  3. Step 3: Cross multiply
    64,409.58x = 88,877.79 × 38,931.30
  4. Step 4: Simplify right side
    64,409.58x = 3,460,127,905.83
  5. Step 5: Solve for x
    x = 3,460,127,905.83/64,409.58
  6. Step 6: Final answer
    x = 53,720.70

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