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Finding the Fourth Proportional to 191,696.40, 287,328.60 and 91,904.40

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Solution

The fourth proportional to 191,696.40, 287,328.60 and 91,904.40 is: 137,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,696.40 : 287,328.60 = 91,904.40 : x
  2. Step 2: Convert to fraction form
    191,696.40/287,328.60 = 91,904.40/x
  3. Step 3: Cross multiply
    191,696.40x = 287,328.60 × 91,904.40
  4. Step 4: Simplify right side
    191,696.40x = 26,406,762,585.84
  5. Step 5: Solve for x
    x = 26,406,762,585.84/191,696.40
  6. Step 6: Final answer
    x = 137,753.04

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