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Finding the Fourth Proportional to 90,870.56, 136,333.73 and 46,528.46

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Solution

The fourth proportional to 90,870.56, 136,333.73 and 46,528.46 is: 69,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,870.56 : 136,333.73 = 46,528.46 : x
  2. Step 2: Convert to fraction form
    90,870.56/136,333.73 = 46,528.46/x
  3. Step 3: Cross multiply
    90,870.56x = 136,333.73 × 46,528.46
  4. Step 4: Simplify right side
    90,870.56x = 6,343,398,502.96
  5. Step 5: Solve for x
    x = 6,343,398,502.96/90,870.56
  6. Step 6: Final answer
    x = 69,806.97

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