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Finding the Fourth Proportional to 91,280.16, 136,925.04 and 28,955.52

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Solution

The fourth proportional to 91,280.16, 136,925.04 and 28,955.52 is: 43,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,280.16 : 136,925.04 = 28,955.52 : x
  2. Step 2: Convert to fraction form
    91,280.16/136,925.04 = 28,955.52/x
  3. Step 3: Cross multiply
    91,280.16x = 136,925.04 × 28,955.52
  4. Step 4: Simplify right side
    91,280.16x = 3,964,735,734.22
  5. Step 5: Solve for x
    x = 3,964,735,734.22/91,280.16
  6. Step 6: Final answer
    x = 43,434.80

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