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Finding the Fourth Proportional to 77,624.96, 106,876.80 and 70,530.20

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Solution

The fourth proportional to 77,624.96, 106,876.80 and 70,530.20 is: 97,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,624.96 : 106,876.80 = 70,530.20 : x
  2. Step 2: Convert to fraction form
    77,624.96/106,876.80 = 70,530.20/x
  3. Step 3: Cross multiply
    77,624.96x = 106,876.80 × 70,530.20
  4. Step 4: Simplify right side
    77,624.96x = 7,538,042,079.36
  5. Step 5: Solve for x
    x = 7,538,042,079.36/77,624.96
  6. Step 6: Final answer
    x = 97,108.48

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