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Finding the Fourth Proportional to 97,428.80, 146,143.20 and 55,841.60

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Solution

The fourth proportional to 97,428.80, 146,143.20 and 55,841.60 is: 83,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,428.80 : 146,143.20 = 55,841.60 : x
  2. Step 2: Convert to fraction form
    97,428.80/146,143.20 = 55,841.60/x
  3. Step 3: Cross multiply
    97,428.80x = 146,143.20 × 55,841.60
  4. Step 4: Simplify right side
    97,428.80x = 8,160,870,117.12
  5. Step 5: Solve for x
    x = 8,160,870,117.12/97,428.80
  6. Step 6: Final answer
    x = 83,762.40

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