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Finding the Fourth Proportional to 61,307.80, 91,961.70 and 31,734.70

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Solution

The fourth proportional to 61,307.80, 91,961.70 and 31,734.70 is: 47,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,307.80 : 91,961.70 = 31,734.70 : x
  2. Step 2: Convert to fraction form
    61,307.80/91,961.70 = 31,734.70/x
  3. Step 3: Cross multiply
    61,307.80x = 91,961.70 × 31,734.70
  4. Step 4: Simplify right side
    61,307.80x = 2,918,376,960.99
  5. Step 5: Solve for x
    x = 2,918,376,960.99/61,307.80
  6. Step 6: Final answer
    x = 47,602.05

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