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Finding the Fourth Proportional to 98,438.40, 147,657.60 and 88,070.40

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Solution

The fourth proportional to 98,438.40, 147,657.60 and 88,070.40 is: 132,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,438.40 : 147,657.60 = 88,070.40 : x
  2. Step 2: Convert to fraction form
    98,438.40/147,657.60 = 88,070.40/x
  3. Step 3: Cross multiply
    98,438.40x = 147,657.60 × 88,070.40
  4. Step 4: Simplify right side
    98,438.40x = 13,004,263,895.04
  5. Step 5: Solve for x
    x = 13,004,263,895.04/98,438.40
  6. Step 6: Final answer
    x = 132,105.60

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