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Finding the Fourth Proportional to 92,743.08, 127,987.20 and 56,915.16

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Solution

The fourth proportional to 92,743.08, 127,987.20 and 56,915.16 is: 78,543.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,743.08 : 127,987.20 = 56,915.16 : x
  2. Step 2: Convert to fraction form
    92,743.08/127,987.20 = 56,915.16/x
  3. Step 3: Cross multiply
    92,743.08x = 127,987.20 × 56,915.16
  4. Step 4: Simplify right side
    92,743.08x = 7,284,411,965.95
  5. Step 5: Solve for x
    x = 7,284,411,965.95/92,743.08
  6. Step 6: Final answer
    x = 78,543.99

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