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Finding the Fourth Proportional to 40,915.53, 61,307.69 and 36,978.93

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Solution

The fourth proportional to 40,915.53, 61,307.69 and 36,978.93 is: 55,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,915.53 : 61,307.69 = 36,978.93 : x
  2. Step 2: Convert to fraction form
    40,915.53/61,307.69 = 36,978.93/x
  3. Step 3: Cross multiply
    40,915.53x = 61,307.69 × 36,978.93
  4. Step 4: Simplify right side
    40,915.53x = 2,267,092,592.08
  5. Step 5: Solve for x
    x = 2,267,092,592.08/40,915.53
  6. Step 6: Final answer
    x = 55,409.10

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