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Finding the Fourth Proportional to 78,692.04, 118,051.13 and 31,307.58

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Solution

The fourth proportional to 78,692.04, 118,051.13 and 31,307.58 is: 46,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,692.04 : 118,051.13 = 31,307.58 : x
  2. Step 2: Convert to fraction form
    78,692.04/118,051.13 = 31,307.58/x
  3. Step 3: Cross multiply
    78,692.04x = 118,051.13 × 31,307.58
  4. Step 4: Simplify right side
    78,692.04x = 3,695,895,274.83
  5. Step 5: Solve for x
    x = 3,695,895,274.83/78,692.04
  6. Step 6: Final answer
    x = 46,966.57

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