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Finding the Fourth Proportional to 92,530.80, 138,688.20 and 53,125.20

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Solution

The fourth proportional to 92,530.80, 138,688.20 and 53,125.20 is: 79,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,530.80 : 138,688.20 = 53,125.20 : x
  2. Step 2: Convert to fraction form
    92,530.80/138,688.20 = 53,125.20/x
  3. Step 3: Cross multiply
    92,530.80x = 138,688.20 × 53,125.20
  4. Step 4: Simplify right side
    92,530.80x = 7,367,838,362.64
  5. Step 5: Solve for x
    x = 7,367,838,362.64/92,530.80
  6. Step 6: Final answer
    x = 79,625.79

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